Answer:
3
Step-by-step explanation:
5(3)-3=12 yes
5(4)-4=17 no
3
Calculati- 2x + 3y – 5x + y
Answer:
.10
x
2
+
11
x
y
−
6
y
2
Step-by-step explanation:
The Expression
=
(
2
x
+
3
y
)
(
5
x
−
2
y
)
=
2
x
(
5
x
−
2
y
)
+
3
y
(
5
x
−
2
y
)
=
10
x
2
−
4
x
y
+
15
x
y
−
6
y
2
=
10
x
2
+
11
x
y
−
6
y
2
.
You prepare 10 scoops of dog food for 5 dogs, and prepare 16 scoops of dog food for 8 dogs. What
is the constant of proportionality for the amount of dog food to the number of dogs? How many
scoops of dog food should you prepare for 6 dogs?
Answer:
12 scoops of dog food are needed for 6 dogs,
Step-by-step explanation:
Proportions
The number of scoops of dog foods and the number of dogs are proportional variables.
We are given that 10 scoops of dog foods are used for 5 dogs. This gives a proportion of 10/5=2 scoops per dog.
We also know that 16 scoops are used for 8 dogs. The proportion is also 16/8=2 scoops per dog.
Thus, the constant of proportionality is 2.
For 6 dogs, you need to prepare 2*6 = 12 scoops of dog food.
12 scoops of dog food are needed for 6 dogs,
which expression is equivalent to 15 - 5x? select all that apply
A -5(x - 3)
B 3(5-x)
C -5(3- x)
D -(-5+2x) + x
4. A student earned an 80% on a math test. If she got 16 questions correct, how many problems were on the test? A. 13 questions B. 18 questions C. 20 questions D. 22 questions
Answer:
20 questions on the test so C
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
16*100/80
1600/80=20
Out of 30 students in Mohammed's class, 40% are girls. How many are boys?
Answer:
18 boys
Step-by-step explanation:
30*0.4= 12
30-12=18
please HELPPPPPPPPPPPPP
25.13274122.
....................
Ann drove 638 miles in 11 hours.
At the same rate, how many miles would she drive in 9 hours?
Answer:
638 miles / 11 hours = 58mph
So if he is traveling at 58 miles per hour for 7 hours, multiply the two numbers. 7(58) = 406
At the same rate of speed, Eric would travel 406 miles in 7 hours.
Step-by-step explanation:
I hope you undertand it
Answer:
522
Step-by-step explanation:
638 miles.......11hours
x miles ............ 9 hours
x = 638 * 9 / 11 = 522 miles
11. A survey of students showed that of them will try the new cafeteria foods. If 180 students are given a new cafeteria food, how many of them will try it? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.
Answer:
Im kinda confused on this too
Step-by-step explanation:
Kalya had 20 softballs pitched to her she hit 19.What percent if balls did she hit
Answer:
95%
Step-by-step explanation:
[tex] \frac{19}{20} \times 100[/tex]
= 95%
A restaurant starts with 10 dozen
pieces of cornbread. Every order
receives 2 piece of cornbread. At the
end of their lunch rush, there are 28
pieces of cornbread left. How many
orders did the restaurant take?
Answer:
46 orders.
Step-by-step explanation:
(10*12) - 2x = 28
120 - 2x = 28
-2x = 28 - 120
-2x = -92
x = -92/2
x = 46
What is the place value of the 7 in 4.704
Answer:
it is in the tenths place :)
Step-by-step explanation:
hope this helps you <3
Answer:
tenth place
Step-by-step explanation:
At a store, a hat has a regular price of x dollars. During a sale, the price of the hat is discounted by 20%. The expression 0.8x describes the discounted price, in dollars, of the hat. Which expression also describes the discounted price, in dollars, of the hat?
Answer: D) x - 0.2x
Step-by-step explanation:
The hat has a regular price of x dollars.
This price is reduced by 20% so the relevant expression for the discount is; 20% * x or; 0.2x
The discounted price will be the price of the hat less the discount which means the formula will be;
= Price - discount
= x - 0.2x
Hurry Abag contems he green 3 vellow and 3 red marbles, as shown.
What is the probably of daared marble out of the bag without looking?
Answer:
1/9 of a chance.
Step-by-step explanation:
You count all the marbles and then take one of the red marbles away.
please help!! ill mark brainliest if correct as a christmas present but please help! :))
Answer:
(0.5 -2.5)
Step-by-step explanation:
B is at (1, -5). A dilation by 0.5 means that these coordinates are multiplied by 0.5 each.
So 0.5(1) then 0.5(-5) = (0.5, -2.5)
if x equals 8
x/4-3
Answer:
The answer is 1
4-3=1
8/1=8
Answer:
x/4-3 (plug in the given value for x)
8/4 - 3 (do the division first because PEMDAS)
2 -3 (subtract)
-1 (this is your answer)
PLZ HELP QUICKLY THANK YOU
The interval for this number line is_____.
A.3
B.5
C.4
D.6
Answer:
A: 3
FLVS... its right trust
100 POINTS!!! PLEASE ANSWER WILL GIVE BRAINLIEST TO WHOEVER GETS QUESTION RIGHT.
A rectangle has a perimeter of 58 inches. The length is 1 inch more than 3 times the width. Write a linear system to model the scenario using w to represent the width of rectangle and l to represent the length of the rectangle. Find the length and width of the rectangle.
Answer:
659
Step-by-step explanation:
Answer:
Step-by-step explanation:
what is the greatest common factor of 7 and 21
Answer:
7
Step-by-step explanation: calculate the prime factors of 7 and 21, than find the greatest common factor
The greatest common factor of 7 and 21 is 7.
What is Number system?A number system is defined as a system of writing to express numbers.
To find the greatest common factor (GCF) of 7 and 21, we can list the factors of each number and identify the largest factor they have in common.
The factors of 7 are 1 and 7
The factors of 21 are 1, 3, 7, and 21.
The largest factor that they have in common is 7.
Therefore, the greatest common factor of 7 and 21 is 7.
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Order 67% , 3/4 , 0.7, and 3/5 in order from least to greatest
Answer:
3/5, 67%, 0.7, 3/4
Step-by-step explanation:
3/4= 75%
3/5= 60%
67%
0.7= is equivelent to 70%
I NEED YOUR HELP PLEASE!!
Peer review happens when:
A.your teacher grades your paper and gives you feedback for next time
B.your mom looks at what you wrote and tells you to make some changes
C.a friend or fellow student gives you ideas on how make to make a story even better
D.you keep all drafts of your paper to yourself until you publish it
Find the coordinates of quadrilateral "WXY' after a dilation with the scale factor of 2.
Original coordinates:
V(6, 2), W2,4), X-3, -2), Y(3, -5), scale factor of 2
8
W
0 -86
10
12
NEED HELP ASAP
Answer:
2,1
Step-by-step explanation:
Answer: no
Step-by-step explanation:
what's the slope between (5,-2) and (-7,22)
Answer: The answer is: -2
Step-by-step explanation:
Here, suppose
(5,-2)=(x1, y1)
(-7,22)=(x2, y2)
Now, use the slope equation to find slope(m).
y2-y1=m(x2-x1)
or,m=y2-y1/x2-x1
After this, just substitute the values from above.
Given hexagon KLMNOP is congruent to hexagon QRSTUV. What is the measure of KL?
5.5 in
16 in
19 in
13 in
Answer: no idea please halp this poor old lad..... :(
Step-by-step explanation:
....................
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please help it is due today
Answer:
so it equation a= 0.2
Step-by-step explanation:
Answer:
The first one (a = 0.2 x 150). And a = 30
Step-by-step explanation:
To find a percentage of a number, you multiply it by 0.10 for 10%, 0.20 for 20%, and so on. Since a is the unknown number, that makes the first option correct. Now, we multiply .2 and 150 to get 30. That is the answer to the second part.
can someone please help me brainlist to whoever gets it right
Domain and Range both are real numbers for all odd-degree polynomial functions.
Writing in an Interval Form, note that we use the least value in the left and the most value in the right.
From [a,b], [a,b), (a,b] or (a,b) | a must be less than b.
Therefore, the D choice is wrong in Interval part (However, right in range and domain but just for interval order.)
So the answer is C.
Vladas believes that an equation with a squared term is never a function of x. Which equation can be used to show Vladas that his hypothesis is incorrect?
x + y2 = 25
x2 – y = 25
x2 + y2 = 25
x2 – y2 = 25
Hence , the Vladas hypothesis which is incorrect is x² + y² = 25 which is option (c) .
Pythagoras theorem states that “In a trigon, the square of the flank facet is adequate to the total of squares of the opposite 2 sides“.The equation with a square term is rarely a perform of x declared by Vladas.
This is the statement relating to philosopher theorem that states that square of 2 range|number} is third number , these numbers once assigned to a triangle forms a right angulate triangle , the angle between 2 smaller sides is of 90°.
Among the four hypothesis given:
Option (C) : x²+ y²= 25 which is true.
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The scatter plot shows the number of people at a fair based on the outside temperature. How many fewer people would be predicted to be at the fair on a 100°F day than on a 75°F day? Fill in the blanks:
The slope is __.
For each degree that the outside temperature increases, the fair attendance decreases by __ thousand people.
The difference between 75°F and 100°F is __°F.
-0.16 *__ =__
About __ thousand fewer people are predicted
to be at the fair on a 100°F day than on a 75°F day.
Using the regression scatterplot given, the slope of the relationship between the number of people and temperature and the questions can be answered thus :
Slope = Δy / ΔxSlope = (12-4) / (60 - 110) = 8/50 = 0.16
Hence, the slope = 0.16
2.)
Using the slope value, which is the rate of change,
For each degree increase in outside temperature, fair attendance decreases by 0.16 thousand people.
3.)
The difference between 75°F and 100°F is (100 - 75) = 25°F
Multiplying the slope by the difference :
-0.16 × 25 = 4
Hence, about 4000 fewer people are predicted to be at the fair on a 100°F day than on a 75°F day.
Learn more :https://brainly.com/question/18405415
Helpppppppppppppppppppppppp
Answer:
t0qjg9gkrgrgfr
Step-by-step explanation:
rgrgrgrgrgrgrgrgrg
Answer:
I believe the answer is a 25
Step-by-step explanation:
i learned this last year on I ready and I believe you divide each side in a half and thats the answer so it should be a
HELPPP!!!???PLEASE HELPPP!!
Answer:
[tex]\frac{5}{14}[/tex] [tex]or[/tex] [tex]0.357142857143[/tex]
Step-by-step explanation:
__________________________________________________________
[tex]\frac{2}{7}\div\frac{4}{5}[/tex] = [tex]\frac{5}{14}[/tex] [tex]because[/tex],
[tex]\frac{2}{7}[/tex] = [tex]0.285714285714[/tex]
[tex]\frac{4}{5}[/tex] = [tex]0.8[/tex]
[tex]0.285714285714[/tex] [tex]\div[/tex] [tex]0.8[/tex] = [tex]0.357142857143[/tex]
[tex]\frac{5}{14}[/tex] = [tex]0.357142857143[/tex]
__________________________________________________________
Hope this helps! <3
__________________________________________________________
Answer:
it is A
Step-by-step explanation:
Multiply them then divide them by 2