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3 years ago

It took 2 electricians 5 days to wire a house. How long would it take 10 electricians?

Mathematics

2 answers:

mariarad [96]3 years ago

6 0

I think it would take 1 day.
10 is 2x5, so divide 5 by 5, giving 1.

vova2212 [387]3 years ago

3 0

Answer:

2 took 5 10 take 1

Step-by-step explanation:

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Explain how to find the number of grams of fat in 2.5 cups of corn if there are 7.87 grams of fat in 1 cup of corn.

Zielflug [23.3K]

We have to realize a simple rule of three

if 1 cup of corn------------------------- > 7.87 g of fat
2.5 cup--------------------------- X

X=2.5*7.87=19.675 gr

the answer is 19.675 grams of fat in 2.5 cup of corn

8 0

3 years ago

Read 2 more answers

A tessellation has 2 pairs of congruent angles around the point of intersection. The measure of each of one pair of congruent an

Over [174]

9514 1404 393

Answer:

152°

Step-by-step explanation:

If two pairs of congruent angles total 360°, then the different angles must total 180°. The other angle measure is 180° -28° = 152°.

The measure of each angle in the other congruent pair is 152°.

8 0

3 years ago

What is the range for the graph shown?

maxonik [38]

Answer:

Step-by-step explanation:

Answer is D)

Range lies in between -2 and 3

=> -2 <= y <= 3

(-2 less than or equal to y, less than or equal to 3)

8 0

2 years ago

David lives 3 2/3 miles from the lake. Mariel lives2 1/2 times as far from the lake as David does.

jek_recluse [69]

(3 + (2/3))(2+(1/2) = 3*2+2*(2/3)+3*(1/2)+((2/3)(1/2)) = 6+(4/3) +(3/2) + (2/6) = 6 + ((8+9+2)/6) = 6 + (19/6) = 6 + 3 + 1/6 = 9 + 1/6 miles = D

3 0

3 years ago

Jake is solving x^2-6x+5=0 by completing the square his steps are shown below step 1. x^2-6x=-5 step 2. x^-6x+9=-5+9 step 3. (x-

damaskus [11]

Answer:

Jake's error in step 3

Step-by-step explanation:

we have

$x^{2} -6x+5=0$

Complete the square

step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2} -6x=-5$

step 2

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} -6x+9=-5+9$

$x^{2} -6x+9=4$

step 3

Rewrite as perfect squares

$(x-3)^{2}=4$

Jake's error in step 3

He placed 6 instead of 3 in the left side

step 4

take square root both sides

$\sqrt{(x-3)^2} =\sqrt{4}$

step 5

$(x-3)=\pm2$

step 6

$x=3\pm2$

step 7

x=5 and x=1

7 0

3 years ago