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3 years ago

4. Stella is running in the 90 meter dash at her school track meet. If her speed is

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

3 0

It would take her about 15 seconds

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In jims class, 5 times has many students take the bus as those who walk. A total of 24 students walk or take the bus. How many m

lubasha [3.4K]

Take bus=5 times walk
b=5w
b+w=24
sub 5w for b
5w+w=24
6w=24
divide both sides by 6
w=4

sub back
b=5w
b=5(4)
b=20

bus-walk=20-4=16

answer is 16 more take the bus than walk

7 0

3 years ago

Evaluate the algebraic expression by using the distributive property: 7(7x+y)

11111nata11111 [884]

Answer:

Step-by-step explanation:

14x + 7y is the correct answer

3 0

3 years ago

Read 2 more answers

Can someone help me one these two

strojnjashka [21]

On the top problem: Angle A and Angle B are a right angle so it equals 90 degrees. If Angle B is 50 degrees that makes Angle A 40 degrees. Angle A and Angle C is a straight line and equals 180 degrees so if Angle A equals 40 degrees that means Angle C equals 140 degrees.

8 0

3 years ago

ali's tyre pressure gauge shows a reading witch is 8 % lower than the actual pressure when the gauge shows 33.58

Rama09 [41]

Answer:

the actual pressure is 31.09

Complete question:

What is the actual pressure when Ali's gauge shows 33.58

Step-by-step explanation:

Given,

Ali's tyre presser gauge show a reading 8% higher than the actual pressure.

Ali's gauge shows 33.58.

Let the actual pressure be x.

According to problem,

$x\times\frac{108}{100} =33.58$ { [If 8% increasing of a no ⇒ The number becomes = $(\frac{100+8}{100})$ of the number}

x= $\frac{33.58\times100}{108}$

x=31.09

Therefore, the actual pressure is 31.09

5 0

3 years ago

Given: 3x - 5 = 4 (2x – 15)<br> Prove: x = 11<br> Statement<br> Reason

Shalnov [3]

Step-by-step explanation:

3x-5=8x-60

55=5x

x=11

6 0

3 years ago