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2 years ago

Write a proportion for each of the diagrams below and solve for the missing value.

Mathematics

1 answer:

Sphinxa [80]2 years ago

6 0

Answer:

y=6

Step-by-step explanation:

$\frac{4}{8} =\frac{3}{y}$

$4y=24$

$y=6$

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You are a contractor and charge $65 for a site visit plus an additional $15 per hour for each hour you spend working at the site

tatiyna

Answer:

54.6 hours

Step-by-step explanation:

65x2 is 130 130-950 is 820 then 820 divided by 15 is 54.6 therefore meaning you have to work 54.6 hours to get 950$ you can check this by doing 54.6x15+130, might not be exact because i rounded to the nearest tenth.

Hope this helps!

8 0

3 years ago

Which representation does not show y as a function of x?

Elden [556K]

Answer:

The letter j because the points have to be functioned as a straight line

8 0

2 years ago

The low temperatures for 5 days was 5, -2, -11 ,0 and-3.What was the average low temperature for those days

Daniel [21]

Data:
Average (A): ?
Arithmetic mean (A.M) = 5, -2, -11, 0, -3sum of n numbers = 5

Solving:
$A = \frac{AM}{n} = \frac{5+(-2)+(-11)+0+(-3)}{5} = \frac{5-2-11-3}{5} = \frac{\diagup\!\!\!\!3-11-\diagup\!\!\!\!3}{5} = \frac{-11}{5} = - 2.2$

Answer:

<span>The average low temperature of these days is -2.2</span>

3 0

3 years ago

How do you solve X-y=11 by elimination

Verdich [7]

Answer: x=y+11

Step-by-step explanation:

Equation: x−y=11

Step 1. You need to add y to both sides.

x−y+y=11+y

x=y+11

Answer:

x=y+11

3 0

3 years ago

Given cosθ=√3/3 and sinθ<0. What is the value of sinθ?

KATRIN_1 [288]

$\sin^{2} \theta+\cos^{2} \theta=1 \\ \\ \sin^{2} \theta+\left(\frac{\sqrt{3}}{3} \right)^{2}=1 \\ \\ \sin^{2} \theta+\frac{1}{3}=1 \\ \\ \sin^{2} \theta=\frac{2}{3} \\ \\ \theta=-\frac{\sqrt{2}}{\sqrt{3}}=\boxed{-\frac{\sqrt{6}}{3}}$

5 0

1 year ago