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2 years ago

1. A boy needs to be at school by 8:15 am. If it takes him 15

Mathematics

2 answers:

GenaCL600 [577]2 years ago

5 0

Answer:

7:00 am

Step-by-step explanation:

7:00 am

pshichka [43]2 years ago

4 0

Answer:

He would need to get up at 7:00am

Step-by-step explanation:

He would need to get up at 7:00 am because if you add all the times together which would be 15+20+25+15=75 so he would take 1 hour and 15 mins to get ready before school therefor he would be at school exactly at 8:15 am.hope it helps you!

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Please help me thank you

Katen [24]

Answer: y=-0.5x+4.5

Step-by-step explanation: y=mx+b, m is the slope = -1/2 or -0.5, and b is the y-int, which is 4.5

3 0

3 years ago

On a sunny day, a 4-foot red kangaroo casts a shadow that is 5 feet long. The shadow of a nearby

son4ous [18]

Answer:

16 feet

Step-by-step explanation:

Set up a proportion where x is the height of the tree:

$\frac{4}{5}$ = $\frac{x}{20}$

Cross multiply and solve for x:

5x = 80

x = 16

So, the tree is 16 feet tall

8 0

3 years ago

Find the x-intercepts of the parabola with vertex (1,-108) and y-intercept (0,-105). Write your answer in this form: (X1,y1), (x

Stolb23 [73]

Answer:

(7, 0) and (-5, 0)

Step-by-step explanation:

<u>Vertex form</u>

$y=a(x-h)^2+k$

(where (h, k) is the vertex)

Given:

vertex = (1, -108)

$\implies y=a(x-1)^2-108$

Given:

y-intercept = (0, -105)

$\implies a(0-1)^2-108=-105$

$\implies a(-1)^2=-105+108$

$\implies a=3$

Therefore:

$\implies y=3(x-1)^2-108$

The x-intercepts are when y = 0

$\implies 3(x-1)^2-108=0$

$\implies 3(x-1)^2=108$

$\implies (x-1)^2=36$

$\implies x-1=\pm \sqrt{36}$

$\implies x=1\pm 6$

$\implies x=7, x=-5$

Therefore, the x-intercepts are (7, 0) and (-5, 0)

7 0

2 years ago

This is hard lets see if you well be able to do it

erica [24]

Answer:

I did the math the answer is 90

Step-by-step explanation:

if you multiply 15 by 6 you get 90

8 0

2 years ago

Amy and her three friends love to eat pizza for lunch. Amy's mother bakes

HACTEHA [7]

Amy has a fraction of 2/3

Jill has a fraction of 1/2

Lila has a fraction of 3/6

Ella has a fraction of 3/4

_______________________

Jill and Lila both at the same amount of pizza.

3/6 can simplify to 1/2

5 0

3 years ago