Answer:
4 liters of 30% and 6 liters of 50% acid.
Step-by-step explanation:
Let the volume of 30% acid be x, then the volume of 50% acid will be
(10 - x) liters.
So we have the equation:
0.30x + 0.50(10 - x) = 0.42* 10
0.30x + 5 - 0.50x = 4.2
0.80 = 0.20x
x = 4 liters.
So we need 4 liters of 30% acid and 6 liters of 50% acid.
There are 40 houses in a neighborhood.
• Company X provides electricity to 1/8 of the houses.
• Company Y provides electricity to 1/2
of the houses.
• Company Z provides electricity to the remaining houses.
In this neighborhood, Company Z provides electricity to —
Answer:
15 houses
Step-by-step explanation:
40 ÷ 8 = 5 Company X provides electricity to 5 houses
40 - 5 = 35
Half of 40 = 20 Company Y provides electricity to 20 houses
35 - 20 = 15
Company Z provides electricity to 15 houses.
NEED HELP ASAP (please and thank you)
Answer:
800
Step-by-step explanation:
i dont know how to explain. i just did the math. hope this helps.
it wouldnt be 600 because thats 1/2 of 1200 not 2/3.
Answer:800
i put it wrong at first but its 800
Can someone step by step explain this to me?
Which is a simplified form of the expression -4(3r – 2) – 2(r + 1)?
Whoever helps gets 50 bonus points.
-4(3r - 2) - 2(r + 1) = 0
-12r + 8 - 2r - 2 = 0
-14r + 6 = 0
-14r = - 6
r = 6/14
r = 3/7
Answer:
[tex]\huge\boxed{\sf -14r+6}[/tex]
Step-by-step explanation:
[tex]\sf -4(3r-2)-2(r+1)\\\\Resolving \ Parenthesis\\\\= -12r+8-2r-2\\\\Combining \ like \ terms\\\\= -12r -2r +8-2\\\\= -14r+6\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Please help me I will give you the brain thing and extra points (image below) 4/5
1 mile per minute
Step-by-step explanation:
you see in the time span from 15 to 20 minutes it is 5 minutes and he ran five miles in five minutes so he ran 1 mile per minute :)
20 POINTS AND GIVING BRIANLIEST !!!
Answer:
good job
Step-by-step explanation:
Find the slope and the y-intercept of the graph of the linear equation. y=−3−1/4x
Answer:
m= -1/4
b= -3
Step-by-step explanation:
y=mx+b
slope=m
m= -1/4
b=y-intercept
b= -3
How do you solve this;
The price of a theater ticket increased from $7.50 to $7.75. The theater sold 315 tickets at the higher price. With the price increase, how much more did the theater earn on the tickets?
Answer: 78.75
its just multiplying the extra 25 cents they added by the number of tickets they sold(315) and that equals 78.75$
Answer this question ASAP Plz
Answer:
a) a
b) a
c) b
formulas you may need for the first two
slope intercept and y = mx+b
for c just look at the graph rise over run
Step-by-step explanation:
good luck
help me with this and get 10 point and bright if right.
Answer:
A
Step-by-step explanation:
As on X axis line touches the positive number so x will be a real number..after that on y axis the lines touching approximately to 1 or 2 so it mean y is less than or equal to 4
john has four more nickels than dimes in his pocket, for a total of $1.25. Which of the following equations could be used to determine the number of dimes,d, in his pocket?
Answer: You could use really any but i would probably do division or subtraction
Step-by-step explanation:
I need help please..
A contractor purchases 5 dozen pairs of padded work gloves for $67.80. She incorrectly calculates the unit price as $13.56 per pair for the expense report. What is the correct unit price? What is the error?
Answer:
I think the answer would be $1.13 per pair.
Step-by-step explanation:
It states that there were 5 dozen gloves, a dozen equals 12, or in this case 12 pairs. 5 dozen means there would be 5×12=60 or 60 pairs. 67.80÷60(pairs)=1.13 dollars PER pair.
The error is that she divided with the 5 dozens, instead of individual pairs.
This graph shows a proportional relationship between the amount of money in Jack’s savings account and the number of weeks Jack has been saving money.
Which statement identifies the correct slope, and the correct interpretation of the slope for this situation?
A
The slope of the line is 61 , so Jack is saving $6 per week.
B
The slope of the line is 61 , so Jack' is saving $1 for every 6 weeks.
C
The slope of the line is 16 , so Jack is saving $6 for every 1 week that passes.
D
The slope of the line is 16 , so Jack is savings $1 for every 6 weeks that passes.
The slope of the line is 6, which can be interpreted as Jack saving $6 per week. (Option A).
Recall:
Proportional relationship between two quantities can be given as: y = mx, where m = slope.
Slope (m) = y/x (of a graph that is proportional)
Given the proportional graph, using a point on the line, (5, 30):
Slope (m) = [tex]\frac{30}{5} = 6[/tex]
Therefore, the slope of the line is 6, which can be interpreted as Jack saving $6 per week. (Option A).
Learn more here:
https://brainly.com/question/6869319
I really need help with this...
help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer: Its so blurry. I cant see the question
Step-by-step explanation:
I need help with this!!!!!
Answer:
A) 4(7+x)=64
B) 4x+7=64
Step-by-step explanation:
A
4(7+x)=64
*Disturabute 4 to (7+x)*
28+4x=64
*Subtract 28 on both sides*
4x=36
*Divide by 4*
x=9
**If you do a Check it works*
B
4x+7=64
*Subtract 7*
4x=57
*Divide by 4*
x=14.25
**If you do a Check this also works**
Hope This Helps!!!
The distance on a map between a student’s house and her job is 6 cm. On the same map, the distance between her house and her school 8 cm. The actual distance from her house to school is 12 km. If d represents the approximate distance in km between her house and her job, what is d?
A.4
B.9
C.48
D.16
Answer:it B I think
Step-by-step explanation:
I’m not sure though.
Blossom typed 1/8 of her report on Monday. She typed 1/4 of the report of Tuesday. How much of the report does she need to type to finish it on Wednesday?
Answer:4
Step-by-step explanation:
Answer: 5/8
That's it
Farmer Jane picked 2,552 strawberries. She shared the strawberries among 9 bins. She wrote an equation to find the total number of strawberries in each bin. 2,522 ÷ 9 = 280 r 2. What does the number 2 represent about Farmer Jane's strawberries?
Question 2 options:
It represents the number of bins leftover.
It represents the number of bins the strawberries were shared into.
It represents the number of strawberries that need to be divided.
It represents the number of strawberries that were not placed in bins.
Answer:
D.
Step-by-step explanation:
R is remainder and to have equal amounts in each bin she could not put them in one.
It represents the number of bins leftover.
Hope this helped:) Have a grate holiday!
Which equation can be used to find 60 percent of 50? StartFraction 60 times 2 Over 50 times 2 EndFraction = StartFraction 120 Over 100 EndFraction StartFraction 50 divided by 1 Over 60 divided by 1 EndFraction = StartFraction 50 Over 60 EndFraction StartFraction 60 divided by 2 Over 100 divided by 2 EndFraction = StartFraction 30 Over 50 EndFraction StartFraction 100 times 2 Over 50 times 2 EndFraction = StartFraction 200 Over 100 EndFraction
Answer:
50/100=.5, .5x60= 30
30
Select the shapes that are similar to shape A.
Which gives the correct values for points A, B, C, and D?
PLEASE HELP ASAP!
Hope this helps!
A is-2/5
B is -1/5
C is -4/5
D is -3/5
Answer:
none of them do
Step-by-step explanation:
Please help!!
fhasidhasiuhdhdas (this was so i could post the question)
5w+ 16 = 96
solve for w
simplify your answer as much as possible
Answer:
w = 16
Step-by-step explanation:
5w+ 16 = 96
or, 5w = 96-16
or, w = 80/5
or, w =16
Answer:
[tex]w=16[/tex]
Step-by-step explanation:
[tex]5w+16=96[/tex]
To solve for [tex]w[/tex], you must first begin by subtracting [tex]16[/tex] from both sides of the equation:
[tex]5w=80[/tex]
Then, divide both sides of the equation by the coefficient of [tex]w[/tex], which is [tex]5[/tex]:
[tex]w=16[/tex]
-
To check your work, substitute the solved value of [tex]w[/tex], ([tex]16[/tex]), in for [tex]w[/tex] in the initial equation:
[tex]5w+16=96[/tex]
[tex]5(16)+16=96[/tex]
[tex]80+16=96[/tex]
[tex]96=96[/tex]
Since both sides of the equation are equal, our solution is correct!
Rectangle A′B′C′D′ is the image of rectangle ABCD after a dilation.
What is the scale factor of the dilation?
Enter your answer in the box.
Answer:
The dilation's scale factor is 1/2.
Step-by-step explanation:
What we know:
Square ABCD's side lengths are all 3.
-2 - (-5)
-2 + 5 = 3
-5 - (-8)
-5 + 8 = 3
Square A'B'C'D''s side lengths are all 1.5.
-2.5 - (-4)
-2.5 + 4 = 1.5
-1 - (-2.5)
-1 + 2.5 = 1.5
Divide the scale (A'B'C'D') by the original (ABCD) to get the scale factor
1.5/3 = 1/2 as the scale factor of the dilation
Kino bought a pizza for $12 and four medium drinks at Mariano's Pizza. Use n as a variable and write an expression to represent the total amount of money she spent
Answer:
12p + 4d = n
Explanation:
p stands for pizza, d for drinks. And the unknown amount of money spent here is represented by n.
p + d will be our total, that's why it is addition.
Answer: Give brainlest and like an give stars cuz this is correct .
Step-by-step explanation:
a = cost of 1 drink $12.75 + 4a $12.75 + $12.00 = $24.75
you could do this one tooo let x represent cost of soda
y = 4x + 12.75
and if you put the three dollars into x
y = 12 + 12.75
so y = 24.75
thank you have a nice say
An equal amount of three different juices are combined to make a quart of punch,
How much of each type of juice are needed to make 4 quarts of punch?
A. 1 1/3 quart
B. 4 quarts
C. 5 1/3 quarts
D. 12 quarts
Answer: A
Step-by-step explanation:
because 1* 3 is 3 then 1/3*3 is 3/3 which is one whole son it s 4 quarts
1 1/3 quart of each type of juice is needed to make 4 quarts of punch. Option A is correct.
What is the Ratio?The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
Here,
An equal amount of three different juices are combined to make a quart of punch,
For 1 quart, of punch, the proportion of each of the three juice will be 1/3,
Now,
for 4 quarts of juice proportion of each juice will be 4 times 1/3 so,
Quantity of each juice = 4/3 or 1 1/3.
Thus, 1 1/3 quart of each type of juice is needed to make 4 quarts of punch. Option A is correct.
Learn more about ratios here:
brainly.com/question/13419413
#SPJ2
Jose has scored 206 points on his math tests so far this semester. To get an A for the semester, he must score at least 279 points.
Answer:
206 + n = 279
Step-by-step explanation:
After a while, Erin switched off the weather report and looked up the temperatures of different cities in old newspapers and magazines. One of the magazines showed temperatures for different times of a particular year. Based on the temperatures she saw for that year, was Boise warmer in April (6 3/4 F) or in May (6.6 F) ?
Answer:
Boise was warmer in April than in May.
Step-by-step explanation:
Answer: Boise was warmer in April (6 3/4 F) than in May (6.6 F).
Step-by-step explanation: PLATO
“The Settlers” by Rowena Jackson
1 Little Bear crept closer through the tall grass until he had a better vantage point to watch the trail of wagons pass. He’d never seen white people before, though his father sometimes traded skins and bows with the men. Little Bear had heard all of the warnings, but he still wanted to see what they looked like.
2 One wagon fell behind the rest of the caravan. The rains of the past few days had turned the trail to thick mud, and the wagon’s oxen were tired. They made it another few minutes before Little Bear heard a loud crack, and the back corner of the wagon crashed to the ground.
3 Two people from the wagon inspected the broken wheel. Little Bear froze when one pulled out a rifle and fired it into the air. He crouched into a small ball in the weeds, his heart drumming in his ears. But then he saw other people running to help the stranded travelers, and he knew that the rifle shot had just been a signal.
4 Just then, there was a rustle in the grass beside Little Bear. He let out the long breath he’d been holding when he saw it was just his older brother, White Deer, who silently signaled that they needed to return home before the settlers spotted them.
5 Little Bear followed, but he paused a moment to glance back. Traveling out on the open prairie was dangerous, and the settlers were just people. He hoped the pioneer family got their wagon wheel fixed soon.
Question: In paragraph 3, why does the author choose the words froze, crouched in a small ball and heart drumming in his ears?
Group of answer choices
-----------------------------------------------------------------------------------------------------------------------------
Question: In paragraph 3, why does the author choose the words froze, crouched in a small ball and heart drumming in his ears?
Group of answer choices
To show that Little Bear was frightened by the sound of the rifle being shot.
To show that Little Bear is cold.
To show that Little Bear wanted to know more about the settlers.
To show that Little Bear was afraid when White Dear crept up on him.
-----------------------------------------------------------------------------------------------------------------------------
Question: What is Little Bear’s attitude toward the white settlers in the last paragraph?
Group of answer choices
Little Bear is still scared of the settlers.
Little Bear hopes they get their wheel fixed and leave soon.
Little Bear wanted to know more about the settlers.
Little Bear is no longer afraid of the settlers
-----------------------------------------------------------------------------------------------------------------------------
Question: Which statement from the text best supports Little Bear’s point of view about the white settlers at the end of the story?
Group of answer choices
Little Bear followed White Dear and returned home.
He realized that the settlers were people just like him.
Little Bear thought traveling on the open prairie was dangerous.
Little Bear was relieved when he realized the rifle shot had just been a signal.
-----------------------------------------------------------------------------------------------------------------------------
Question: From what point of view is this story told?
Group of answer choices
first person
second person
third person limited
third person omniscient
This ia all my points