3 years ago

Replace 27 out of 45 desks. What percent of the desks need to be replaced?

Mathematics

1 answer:

Volgvan3 years ago

8 0

I believe the answer is 40%. I hope this helps!

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PLS HELP TEST ILL GIVE BRAINLIEST

topjm [15]

Answer:

Answer attached

Step-by-step explanation:

With reference to my figure

Shape 1 = square

Shape 2 = rectangle

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3 years ago

In triangleABC, angle B= 90 degrees, cos(C)=15/17 and AB = 16 what is the measure of Angle A, Angle C and angle AC

Sergeeva-Olga [200]

Answer:

m∠C=28°, m∠A=62°, AC=34.1 units

Step-by-step explanation:

Given In ΔABC, m∠B = 90°, , and AB = 16 units. we have to find m∠A, m∠C, and AC.

As, cos(C)={15}/{17}

⇒ angle C=cos^{-1}(\frac{15}{17})=28.07^{\circ}\sim28^{\circ}

By angle sum property of triangle,

m∠A+m∠B+m∠C=180°

⇒ m∠A+90°+28°=180°

⇒ m∠A=62°

Now, we have to find the length of AC

sin 28^{\circ}=\frac{AB}{AC}

⇒ AC=\frac{16}{sin 28^{\circ}}=34.1units

The length of AC is 34.1 units

3 0

3 years ago

Solve for x. 13(x-3) = 39 X=1 X=4 x=6 x=10

Valentin [98]

13 factored out is 13x - 39 add 39 to both sides it equals 13x=78 and 78 divided by 13 is 6 the anwser is x=6

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3 years ago

-5x-(-7-4x)=-2(3x-4) true?

qwelly [4]

Answer:

x=1/5

Step-by-step explanation:

-5x-(-7-4x)=-2(3x-4)

-5x+7+4x=-6x+8

-5x+4x+7=-6x+8

-x+7=-6x+8

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-x+6x+7=8

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5x=8-7

5x=1

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3 years ago

Jericho is a botanist and is researching a particular species of plant. He found that the number of plants in his testing enviro

Phoenix [80]

Answer:

c is the answer ;) hope this helps

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3 years ago

Read 2 more answers