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3 years ago

0.000027÷ 0.000009

Mathematics

1 answer:

kap26 [50]3 years ago

8 0

27
__________
1000000
_______________
9
___________
1000000

denominator goes with denominator =

27/9 =3

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Which expression is equivalent to (3/4)^-2<br> A: -9/16<br> B: 16/9<br> C: -6/8<br> D: 9/16

UkoKoshka [18]

B is the answer B is the answer B is the answer B is the answer

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3 years ago

A school is building a rectangular soccer field that has an area of 6000 square yards. The soccer field must be 40 yards longer

kogti [31]

Area is 6000 yd2

LW = 6000

field must be 40 yards longer than its width

L = W + 40

Replace L with W+40 in 1st equation to solve for Width

(W+40)(W) = 6000

W2 + 40W - 6000 = 0

This is a quadratic but is factorable

Factors of -6000 that add to 40 are (100)(-60)

(W+100)(W-60) = 0

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3 years ago

Read 2 more answers

Find the midpoint of the line segment with the given endpoints. (-10, 5), (-9, -9)

Mkey [24]

Answer:

$=\left(-\frac{19}{2},\:-2\right)$

Step-by-step explanation:

$\left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)\\\\\left(x_1,\:y_1\right)=\left(-10,\:5\right),\:\\\left(x_2,\:y_2\right)=\left(-9,\:-9\right)\\\\=\left(\frac{-9-10}{2},\:\frac{-9+5}{2}\right)\\\\Simplify \\=\left(-\frac{19}{2},\:-2\right)$

5 0

3 years ago

On a cold day, the temperature in a certain city changed −18.5°F over 7.4 hours.

lys-0071 [83]

Answer:

-2.5 degrees

Step-by-step explanation:

The temperature decreased 18.5 degrees F in 7.4 hours.

-18.5/7.4 = -2.5 degrees F

The average change in temperature over the course of 7.4 hours is -2.5 degrees F.

Your welcome!

Kayden Kohl

8th Grade

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2 years ago

Two families went to the Zoo. The Diaz family paid $170 for 3 children and 2 adults. The Jones family paid $360 for 4 children a

lesantik [10]

Answer:

$\mathrm{A.\:}\begin{cases}3x+2y=170,\\4x+6y=360\end{cases}\\\\\mathrm{B.\:} \$ 30$

Step-by-step explanation:

We can write the following system of equations:

$\begin{cases}3x+2y=170,\\4x+6y=360\end{cases}$ , with variables as defined in the question.

Multiply the first equation by $-3$ and add both equations to isolate and solve for $x$ :

$\begin{cases}-9x-6y=-510,\\4x+6y=360\end{cases}\\-5x=-150,\\x=\fbox{$\$ 30$}$ .

3 0

2 years ago

﻿0.000027÷ 0.000009

0.000027÷ 0.000009