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4 years ago

9) 15k + 20 – 10k = 10

Mathematics

1 answer:

Mashutka [201]4 years ago

6 0

Answer:

k=-2

Step-by-step explanation:

You have to bring k itself and make it to a coefficient of 1 using algebra.

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When there are 16 sharks, there are 13 jets. if there are 26 jets, how many sharks are there

Sunny_sXe [5.5K]

Answer: 32

Step-by-step explanation: Hope it helps

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3 years ago

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A garden table and a bench cost $781 combined. The garden table costs $69 less than the bench. What is the cost of the bench?

Arlecino [84]

Answer:

$425

Step-by-step explanation:

x = bench

x - 69 = garden table

x + (x - 69)=781

x + x - 69 =781

2x - 69 = 781

2x -69 +69 = 781 + 69

2x = 850

2x/2 = 850/2

x = 425

Bench = 425

6 0

4 years ago

Read 2 more answers

Angles U and V are supplementary angles. The ratio of their measures is 7:13 Find the measure of each angle

GREYUIT [131]

If $u$ and $v$ are <span>supplementary angles, then

$u+v=180^{\circ}~~~~~\mathbf{(i)}$

The ratio of $u$ and $v$ is $\dfrac{7}{13}:$ <span>

$\dfrac{u}{v}=\dfrac{7}{13}\\\\\\ u=\dfrac{7v}{13}~~~~\mathbf{(ii)}$

Substitute $\mathbf{(ii)}$ into $\mathbf{(i)}:$

$\dfrac{7v}{13}+v=180^{\circ}\\\\\\ \left(\dfrac{7}{13}+1 \right )\cdot v=180^{\circ}\\\\\\ \left(\dfrac{7}{13}+\dfrac{13}{13} \right )\cdot v=180^{\circ}\\\\\\ \dfrac{20}{13}\cdot v=180^{\circ}\\\\\\ v=180^{\circ}\cdot \dfrac{13}{20}\\\\\\ \boxed{\begin{array}{c} v=117^{\circ} \end{array}}$

From $\mathbf{(i)},$ we find the measure of $u:$

$u=180^{\circ}-v\\\\ u=180^{\circ}-117^{\circ}\\\\ \boxed{\begin{array}{c} u=63^{\circ} \end{array}}$

</span></span>

7 0

3 years ago

A university has 34,350 students. In a random sample of 255 students, 17 speak three or more languages. Predict the number of st

agasfer [191]

230.
Because (34350/255)*17 equals 230

6 0

2 years ago

I WILL MARK 5.0 AND ANYTHING YOU WANT!! NEED THIS ASAP

Dominik [7]

Answer:

119°

Step-by-step explanation: