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faust18 [17]
3 years ago
12

Simplify 3-2y+(-8y) + 8.5.

Mathematics
1 answer:
Jlenok [28]3 years ago
7 0

Answer:

=−10y+11.5

Step-by-step explanation:

Let's simplify step-by-step.

3−2y−8y+8.5

=3+−2y+−8y+8.5

Combine Like Terms:

=3+−2y+−8y+8.5

=(−2y+−8y)+(3+8.5)

=−10y+11.5

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The circumference of one coin is 8.03cm. The circumference of another coin is 0.33cm smaller. A.) what is the first step to find
Burka [1]

Answer:

Diameter of the smaller coin = 2.46 cm

Step-by-step explanation:

Circumference of a coin = 2πr

Circumference of coin A = 8.03 cm

Circumference of coin B = 8.03 cm - 0.33 cm

A.) what is the first step to find the diameter of the smaller coin?

Find the circumference of coin B

Circumference of coin B = 8.03 cm - 0.33 cm

= 7.7 cm

B.) Find the diameter of the smaller coin.

Circumference of a coin = 2πr

7.7 = 2 × 3.14 * r

7.7 = 6.28r

r = 7.7 / 6.28

r = 1.23 cm

Diameter = 2r

= 2 * 1.23 cm

= 2.46 cm

Diameter of the smaller coin = 2.46 cm

4 0
3 years ago
Raina ran for president of the chess club, and she received 76 votes. There were 80 members in the club. What percentage of the
lesantik [10]

Answer:

vr = 95%

Step-by-step explanation:

We have a total of 80 members of a club that represents 100%, now we want to know what percentage represent the 76 members who voted for raina  (vr)

vr=\frac{76v}{80vr}*100%= 95%% = 95%

5 0
3 years ago
The old city park is rectangular. It has a length of 350 meters. It has a width of 125 meters. What is the perimeter, in meters,
Natali5045456 [20]

(350x2=700) + (125x2=250) 700+250=950 so the perimeter is 950 meters long I hope this helps!

5 0
3 years ago
Last question...! And then I’m totally done with asking questions for a while. -v-;; Any answers or advice on how to solve?
Veseljchak [2.6K]
Multiply both sides by "x"

1 -x + 2x = 7

x = 6
6 0
3 years ago
Daren and Josh are pretty good free throw shooters. Daren makes 75% of the free throws he attempts. Josh makes 80% of his free t
snow_lady [41]

Answer:

Djud

Step-by-step explanation:

Ueud

5 0
3 years ago
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