Driving 65 mph, it takes Alicia 3 hours to reach the airport to go on a vacation. It then takes her 4 hours to get to her destination with the jet traveling at a speed of 450 mph. How many miles does Alicia travel to get to her destination?
Answer: i am the first one to answer please mark brainliest
65x3 + 450x4=
Step-by-step explanation:
195+1800=1995
Answer:
1,955 miles
Step-by-step explanation:
For this problem all we have to do is, assuming they were constantly going that speed and never stopped, multiply the items and the mph.
SO, to the airport is 65mph*3 hours, which would give 195 miles.
Then, To their destination, 450mph * 4hours = 1,800 miles
Now all that is left to do is add
195 + 1,800 = 1,995
1,995 miles
6. In attempting to solve the system of equations = 3 − 2 and 6 − 2 = 4, John graphed the two equations on his graphing calculator. Because he saw only one line, John wrote that the answer to the system is the empty set. Is he correct? Explain your answer.
Answer:
yes hes correct
Step-by-step explanation:
I need help please! Will give 20 points for brainlist!
Answer:
The rate of change is .5 for the bottom, and 2 on the top.
Step-by-step explanation:
Which equation has a slope of –5/2 and a y-intercept of –2?
A. –5x – 2y = –4
B. –5x – 2y = 4
C. 5x + 2y = 4
D. 5x + 2y = –4
Answer:
A. -5x - 2y = -4
Here's my work for it:
Kira made$234 for 18 hours of work.
At the same rate, how many hours would she have to work to make $104?
Answer:
5 hours and 30 seconds
Step-by-step explanation:
Please i need help on math
Answer:
See below.
Step-by-step explanation:
The slope of a line is the rate of change.
A positive slope slants upward and to the right, while a negative slope slants downward and to the right.
Martha rolls two number cubes. What is the probability that both number cubes come up even?
Plz help me on this I dont understand how to do it.
B.) SUBSTITUTION METHOD
1) 2x + 8y = 20 2) x = 5
y = 2 2x + y = 10
Answer:
1) X=10-4y
Step-by-step explanation:
carpet cost $2 per square foot. linoleum costs $1 per square foot. with $500, and 300 square feet to cover, how much carpet and linoleum can be bought?
Find g: 3g + 15 − 12 + 3 − 2g + 4 = 1
Group of answer choices
33
-33
-9
9
Answer:Group of answer choices
Step-by-step explanation:
What you first want to do is like and unlike terms so basically liketerms are terms withthe same sign and unlike terms are terms with diferent signs for instinse 3g and 2g are like terms so -33 and -9 and -9 and 9 are unlike terms so you just have to find the like and unlike terms to answer the question!
Answer: -9
Step-by-step explanation: Let's solve your equation step-by-step.
3g+15−12+3−2g+4=1
Step 1: Simplify both sides of the equation.
3g+15−12+3−2g+4=1
3g+15+−12+3+−2g+4=1
(3g+−2g)+(15+−12+3+4)=1 (Combine Like Terms)
g+10=1
g+10=1
Step 2: Subtract 10 from both sides.
g+10−10=1−10
g=−9
So the answer is g=-9
Hope this help
ok i have been stuck on this most of my math class please help me.
-u/3 = -45
Answer:
U=135
Step-by-step explanation:
Answer:
U = -135
Step-by-step explanation:
-45 x 3 = -135
-135/3 = -45
In the weeks after a chick hatches, its mass increases by a factor of 2.5 to become 180 grams. What is the chick’s mass at hatching?
Write and solve an equation to show the answer.
Explain when to use division and when to use multiplication to solve an equation. Give examples to support your answer
Answer: 1,796
Step-by-step explanation:
We are given that : At the chicken ranch this morning there were 7,149 chicks.
i.e. The number of new chicks before today = 7,149
Later today some more chicks hatched. now the ranch has 8,945 chicks.
i.e. The number of new chicks after today = 8,945
Then, By Subtraction operation
Number of new chicks hatched today = ( Number of new chicks after today) - (Number of new chicks before today )
= 8,945- 7,149 = 1,796
Therefore , the number of new chicks hatched today = 1,796
solve the equation 1/4t - 6 = -4
Answer:
t = 8
Step-by-step explanation:
[tex]\frac{1}{4}t - 6 = -4\\ +6 \\^{*4} \frac{1}{4}t = 2^{*4} \\t = 8[/tex]
The value of t in the given expression is t = 8
What is an expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given is an expression we need to simplify it for t,
The expression is 1/4t - 6 = -4
So, add 6 to both sides,
1/4 t -6 + 6 = -4 + 6
1/4 t = 2
Multiply by 4 to each side,
1/4 x 4 t = 2 x 4
t = 8
Hence, the value of t in the expression given is 8
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Janice has $600 in an account in which she has to maintain a minimum balance of $240. She withdraws $40 each week for food and clothing. How many weeks can she make the withdrawals without making any deposits?
Answer:
Step-by-step explanation:
if janice has to has 240 in the bank
600-240=360 she can spend
360/40=9 weeks
Answer:
Hope this helps :)
Step-by-step explanation:
600-40x ≥ 240
−40x≥240−600
−40x≥−360
x≤-360/-40
x≤360/40
x≤9
9 weeks
need help asap, please
will give brainly
Answer:
i think the second one or the first one
Step-by-step explanation:
hope this helps
PLEASE HELP ASAP!!!
1. For a party, Susan estimated there would be 14 people in attendance, but only 12 showed up. What was the percent error in her estimation?
2. Find the percent error in this situation:
Estimated value: 231
Actual value: 215
3. Find the percent error in this situation:
Experimental value: 16.5 sec
Theoretical value: 17.1 sec
4. Find the percent error in this situation:
Estimated value: 1081
Actual value: 1150
The formula for percent error is:
((Approximate value - exact value) / exact value) x 100
1) 14-12 = 2
2/12 = 0.1666
0.166 x 100 = 16.7% (Rounded to nearest tenth)
2) 231 - 215 = 16
16/215 = 0.74419
0.74419 x 100 = 7.4419% ( Round as needed)
3) 17.1 - 16.5 = 0.6
0.6/16.5 = 0.36364
0.36364 x 100 = 3.6364% (Round off as needed)
4) 1081 - 1150 = -69
-69/1150 = -0.06
-0.06 x 100 = -6% = 6% error
Answer:
1) 85.7%
2) 93%
3) 96.5%
4) 94%
Step-by-step explanation:
Sorry if any of these are wrong. I used the formula a/w= p/100. a is the part, w is the whole and p is the percent.
it is not C I will give brainliesy
Please help. Will mark brainly
Answer:
1. 50%
2. 200%
Step-by-step explanation:
this is only for the first picture!
do 12-14, ill give brainliest
Answer:
#12. is 12.3
#13 is 342
#14 is 128
hope it helps
Step-by-step explanation:
Can someone help me with my math if you help me i will give you a brainliest
Answer:
Step-by-step explanation:
So its difficult to show
Y= X-6 so what ever x is, y is six less than that so
X= -4 Y= -10
X= 0 Y=-4
X=4 Y=0
X=8 Y= 4
Then plot these on a graph like co-ordinates (x,y) and draw a straight line through them
Y= 4/3x -2 so whatever x is y is 4/3 and 2 less then that
X=-4 Y= -5
X=0 Y= -2
X=4 Y=1
X= 8 Y= 4
Then plot these on a graph like co-ordinates (x,y) and draw a straight line through them
Y= -2
Find minus 2 on the y axis and draw a horizontal line through it all the way across the grid.
Y= 2+ 1/4x so whatever x is y is 1/4 of x add 2
X=-8 Y= 0
X= -4 Y = 1
X=0 Y=2
X=4 Y=3
X=8 Y=4
Then plot these on a graph like co-ordinates (x,y) and draw a straight line through them
Do this method for 9
y = 2x -3 so whatever x is, y is 2 times that -3
y=2x +1 so whatever x is y is 2 times that +1
y= 2x so whatever x is y is 2 times that
Then plot the answers on a graph like co-ordinates (x,y) and draw a straight line through them
Make sure to label each line
Hope this helps
How is unit rates different
from other ratios?
HELP ME PLS!!
Answer:
The numbers or measurements being compared are called the terms of the ratio. A rate is a special ratio in which the two terms are in different units. ... When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates
Step-by-step explanation:
bc i went on goooggle
Which expression is equivalent to -1/3(3 - m)
Group of answer choices
A.-1 - (1/3)m
B.1 + (1/3)m
C.-1 + (1/3)m
D.1 - (1/3)m
Answer:
I am pretty sure that the answer is c
PLEASE HELP I'M BEING TIMES!! (UNIT RATE!!!!!)
Find the unit rate if 6 chocolate chip cookies have 426 calories. Show the answer in fraction and word form.
a.There are 71 calories per cookie.
b.There is 1 calorie per 71 cookies.
c.There are 61 calories per cookie.
d.There are 426 calories per 6 cookies.
Answer:
71 cals/ cookie
Step-by-step explanation:
426 divided by 6 equals 71. hope this helps. good luck
Pleaseeeeeee Help me I will make sure to give you all the good stuff.
1. the first 10in thing that u can see as the photo
2.the second question will be the 7mm photo
3.Find the AREA of a circle that has a diameter of 6 meters
________________________ meters squared
4.Find the AREA of a circle that has a radius of 9 yards
__________________________ yards squared
5. the fifth question will be the 3rd png
6. the fourth png is the sixth
7. the fifth png is the question I WILL GIVE BRAINLYEST IF DO ALL TY
Answer:
777
Step-by-step explanation:
Why do you think people can spend hours scrolling on their phones, playing video games, or watching Netflix without getting distracted?
Can someone please help me with this? I am so confused!!
Here's An inequality:-2x> 10
List some values for x that would make this
inequality true.
2. How are the solutions to the inequality-a 2 10
different from the solutions to -a > 10? explain your
reasoning.
Answer:
6,7,8 etc
Step-by-step explanation:
-2x>10
-2(-x)>10
examples
-2(-6)>10
12>10
12(-7)>10
14>10
Maurice received a $100 bonus check at work this week. He decided that he will not spend the money. Each week, Maurice will add $40 to that bonus. In how many weeks will Maurice have at least $500 saved?
A right rectangular prism is 4 m long, 5 m wide, and has a height of 6 m. What is its surface area?
120 m 2
240 m 2
76 m 2
148 m 2
PLEASE GO TO MY PROFILE AND ANSWER MY OTHER QUESTION
CORRECT ANSWER GET BRAINLY
Answer:
120 meters squared.
Step-by-step explanation:
Answer:
it is not 120 it is 148 m 2
Step-by-step explanation:
PLS HELP I WILL GIVE BRAINLY!
a. The ratio 5/8 to 10/9 has a unit rate of 9/16.
True
False
b. The ratio 4/7∶8/21 has a unit rate of 3/2.
True
False
c. The unit rate of 7/9 2/3 is 14/27.
True
False
d. The unit rate of 9/16 27/4 is 112./
True
False
PLS HELP I WILL GIVE BRAINLY!!
Answer:
1 true
2 false
3 false
4 true
P.S I TRIED MY BEST
Step-by-step explanation:
The required values of ratios are 9/16,3/2, 7/6 and 1/12 respectively. The only false option is (c).
What is the application ratio and proportion?A ratio is the relation between two numbers as a / b. A proportion is the equality of two ratios as a / b = c / d.
Ratio and proportion can be applied to solve Mathematical problems dealing with unit values of the quantities.
All the options are examined one by one as follows,
(a) The ratio of 5/8 to 10/9 is given as,
5/8 : 10/9
= (5/8) ÷ (10/9)
= 5/8 × 9/10
= 9/16
Thus, it is true.
(b) The ratio of 4/7 ∶ 8/21 is given as,
4/7 ∶ 8/21
= (4/7) ÷ (8/21)
= 4/7 × 21/8
= 3/2
Thus, it is true.
(c) The unit rate of 7/9 and 2/3 equivalent to the ratio given below,
7/9 : 2/3
= 7/9 ÷ 2/3
= 7/9 × 3/2
= 7/6
Thus, it is false.
(d) The unit rate of 9/16 and 27/4 equivalent to the ratio given below,
9/16 : 27/4
= 9/16 ÷ 27/4
= 9/16 × 4/27
= 1/12
Thus, it is true.
Hence, the ratios for the given options are obtained as 9/16,3/2, 7/6 and 1/12 respectively.
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