MATHEMATICS MIDDLE SCHOOL

Write each decimal in standard form, expanded form, and words.

0.0472

Answers

Answer 1
Answer: Standard form is simply 0.0472
Expanded Numbers Form:

 0 + 0.0+ 0.04+ 0.007+ 0.0002
Expanded Factors Form:

 0 ×1 +0 × 0.1+4 × 0.01+7 × 0.001+2 × 0.0001
Expanded Exponential Form:

0 × 100+0 × 10-1+4 × 10-2+7 × 10-3+2 × 10-4
Word Form:

four hundred seventy-two ten-thousandths

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Write the equation of the line in slope-intercept form using y=mx+b​
Derrick really wants to earn at least $330 at the Bike Shop. He earns $150 per week plus $15.50 for each bicycle that he assembles. How many bikes will he need to assemble this week in order to earn at least $330? (be careful when rounding in a real world problem to make sure that your answer works) Question 1 options: 10 bikes , 11 bikes , 12 bikes , 13 bikes
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4 people divide 10 scoops of lentils equally.About how many scoops of lentils does each person get?

Answers

Answer:

2 and a half spoon per person (2.5)

Step-by-step explanation:

10/4=2.5
10 divided by 4=2.5 so everyone will get two scoops and a half

100 T-shirts printed for $428.00

Answers

just divide 428.00 by 100 you will get $4.28 each t shirt

60 out of 300 Cds are classical music. what percent are of the cds are classical music cds

Answers

Reduce them.
60/10=6
300/10=30
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20% of those CD's are Classical Music.

Hannah does an experiment. She has two colorless chemicals that she mixes together in a beaker. Which of the following indicates that a chemical change occurs when she mixes the two chemicals together?I. The chemicals change color from colorless to purple.
II. A yellow gas forms.
III. A brown solid forms in the bottom of the beaker.
IV. The temperature of the chemicals rises 15°C.
A.
II and III only
B.
I and III only
C.
I, II, III, and IV
D.
I, II, and III only

Answers

The correct answer is CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC!!!!!!!!!!!!!!

A tire company wants to know how quickly the tread on its tires wears down with average use. Have x represent the number of months the tire was used and have y represent the thickness of the tire tread, in millimeters. The equation for the line of best fit is:y = -3/7x +20

1. What is the slope of the line? *
3/7
-3/7
20
-20

What does the slope represent for the tire company? *
The decrease of time (in months) the tires were used.
The increase of time (in months) the tires were used.
The tire tread decreases by this much each month.
The tire tread increases by this much each month.

2. What is the y-intercept of the line? *
3/7
-3/7
20
-20

What does the y-intercept represent for the tire company? *
How thick the tires were when they started.
The number of months they measured the tire tread.
The increase in tire tread.
The decrease in tire tread.

Answers

1) m=-3/7 in y=-3/7x+20

2) not sure

3)b=20 in y=-3/7x+20
1) y=mx+b
m=slope
m=-3/7 in y=-3/7x+20

2) Since the slope is negative it is decreasing, as seen on a graph. So, the tire tread would be decreasing by the month (x).

3) y=mx+b
b=y-intercept
b=20 in y=-3/7x+20

Algebra help?1?!?!/!??!?!?!?!?!?

Answers

X - 3X = 2(4+X)

Distributive Property:

X-3X = 8+2X

Subtraction Prperty:

-2X = 8+2X

Subtraction Property:

-4X = 8

Division Property:

x = 8/-4

X = -2

Hi,

Let's solve the equation step-by-step.

x−3x=2(4+x)

Step 1: Simplify both sides of the equation.

x−3x=2(4+x)

x+−3x=(2)(4)+(2)(x)(Distribute)

x+−3x=8+2x

(x+−3x)=2x+8(Combine Like Terms)

−2x=2x+8

−2x=2x+8

Step 2: Subtract 2x from both sides.

−2x−2x=2x+8−2x

−4x=8

Step 3: Divide both sides by -4.

−4x/−4 =  8/−4

x=−2

Answer:

x=−2

Have a great day!
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