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3 years ago

What is -0.6(r+0.2) = 1.8 ???

Mathematics

1 answer:

lana66690 [7]3 years ago

4 0

Answer:

r = -3.2

Step-by-step explanation:

-0.6(r+0.2) = 1.8

Divide by -.6

-0.6/-.6(r+0.2) = 1.8/-.6

r+.2 = -3

Subtract .2 from each side

r+.2-.2 = -3-.2

r = -3.2

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Dominic collected data on the favorite sports of the

trasher [3.6K]

Answer:

In Grade 8, 17% of students liked running

Step-by-step explanation:

Although this table is incomplete, there are still enough information to answer.

First, we need to be aware that the data here is written in decimal numbers, which is another way to write percentages.

In other words, 100% equals to 1, which is to say that if we multiply decimal number with 100 we'll get the percentage:

0.39 = 39%

0.04 = 4%

Another important thing to establish is that the value of decimal number DOES NOT mean the number of people, it only suggests the ratio:

0.26 does not mean 26 people etc.

Knowing this, from this incomplete table, we see that 0.17 students from grade 8 liked running. And now we know that 0.17 equals to 17%, which makes B the correct answer.

5 0

3 years ago

Read 2 more answers

The sun shines at a 30° angle to the ground. To the nearest inch, how long is the shadow cast by a 72-in, tall fence post?

Anestetic [448]

The length of the shadow is 124.7 in

<u>Explanation:</u>

Angle of sun to the ground, θ = 30°

Height of the fence, h = 72 in

Length of the shadow, l = ?

We know,

tan θ = (Perpendicular)/(Base)

So,

tan 30° = $\frac{72}{l}$

$\frac{1}{\sqrt{3} } = \frac{72}{l} \\\\l = 72\sqrt{3} \\\\l = 124.7$

Therefore, the length of the shadow is 124.7 in

6 0

2 years ago

WILL MARK BRAINLIEST!! PLEASE HELP ASAP.

Rudiy27

Answer:

I think this is the answer I hope this can help you

Step-by-step explanation:

1) 3 gallons=36 miles

16 gallons=?

so it will be

$36 \times 16 = 576$

$576 \div 3 = 192$

or you can do like this

1 gallons=12 miles so if 16 gallons multiply with 12 it will be 192

2)2 hours=$28.50

? =$99.75

so it will be

$99.75 \times 2 = 199.5$

$199.50 \div 28.50 = 7$

so it will be 7 hours

3) 4.5 km= 5 hours

? =60 hours

$60 \times 4.5 = 270$

$270 \div 5 = 54$

the answer will be 54 kilometer

4) $9.60=3cm

$22.40=?

$22.40 \times 3 = 67.20$

$67.20 \div 9.60 = 7$

7 cm

5) $145.50=50 miles

$552.90=?

$552.90 \times 50 =27645$

$27645 \div 145.50 = 190$

190 miles

6)$239.85=359

$1.95=?

$359 \times 1.95 = 700.05$

$700.05 \div 239.85 = 2.92$

2.92 liter

220=60 hours

?=3 hours

$220 \times 3 = 660$

$660 \div 60 = 11$

11 miles

8)1 gallon= $17.50

8.2 gallon=?

$17.50 \times 8.2 = 143.50$

$143.50

9)7cm=2 minute

? =13 minute

$13 \times 7 = 91$

$91 \div 2 = 45.5$

45.5 cm

10)17=4 acres

? =244 acre

$244 \times 17 = 4148$

$4148 \div 4 = 1037$

1037 kg

11) 1= $2.85

4.4=?

$2.85 \times 4.4 = 12.54$

$12.54

12)

$2.50=5 oz

$32.50=?

$32.50 \times 5 = 162.50$

$162.50 \div 2.50 = 65$

65 oz

5 0

2 years ago

What is 37.52 rounded to the nearest whole

k0ka [10]

I think its 38............

3 0

3 years ago

Read 2 more answers

F(x)=2x+7

yKpoI14uk [10]

Answer:

4587

Step-by-step explanation:

3 0

3 years ago