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Elenna [48]
2 years ago
7

2

Mathematics
1 answer:
emmasim [6.3K]2 years ago
5 0

Answer:

The answer is B

Step-by-step explanation:

hope this helps

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1. Chris takes 25 minutes to replace one car tyre.
vekshin1

Chris and Jim must replace a <em>total</em> quantity of 17 tyres.

<h3>What is the minimum number of tyres to be replaced?</h3>

In this problem we must use an inequality of the form f(x) ≥ a, where f(x) is the difference between the number of tyres replaced by Jim and the number of tyres replaced by Chris:

(25/20) · x - x ≥ 3

(5/20) · x ≥ 3

x ≥ 12

Then, the <em>minimum</em> number of tyres to be replaced is n = 15 + 12 = 17 tyres.  

To learn more on inequalities: brainly.com/question/20383699

#SPJ1

3 0
1 year ago
Write -3 11 as a decimal number.<br> .<br> 16
mixas84 [53]

Answer:   i dont know

Step-by-step explanation:ok i am srry

4 0
2 years ago
A recipe for cookies uses ½ cup of sugar for every 1 cup of flour. How much flour would you need to add to 1 ¾ cups of sugar so
kherson [118]

Answer:

2 1/4

Step-by-step explanation:

1 3/4 = 7/4

5 0
3 years ago
Changle. Show all work. Round each length to the nearest tenth and each angle to the
Sedaia [141]

Answer:

Part 1) BC=12.2\ units

Part 2) m\angle A=55^o

Part 3) m\angle C=35^o

Step-by-step explanation:

Part 1) Find AC

we know that

In the right triangle ABC of the figure

Applying the Pythagorean Theorem

AC^2=AB^2+BC^2

substitute the given values

AC^2=7^2+10^2

AC^2=149\\AC=12.2\ units

Part 2) Find the measure of angle A

we know that

In the right triangle ABC

tan(A)=\frac{BC}{AB} ----> by TOA (opposite side divided by the adjacent side)

substitute the values

tan(A)=\frac{10}{7}

using a calculator

m\angle A=tan^{-1}(\frac{10}{7})=55^o

Part 3) Find the measure of angle C

we know that

In the right triangle ABC

m\angle A+m\angle C=90^o ----> by complementary angles

substitute the given value

55^o+m\angle C=90^o

m\angle C=90^o-55^o=35^o

8 0
3 years ago
What is 8+7times15 so what is it tell me now
Inessa05 [86]
The answer is 113. As said by the calculator


5 0
3 years ago
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