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galina1969 [7]
3 years ago
13

(15 points)Need help on math homework... here take sum point for helping!

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0

Answer:

7 is y= 0.25p+5

8 is 60t=1350

9 is y=5t+40

10 is y=1 1/4b

Step-by-step explanation:

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1. Adam burns 850 calories when he runs for one hour, suppose he runs 3 hours .
LiRa [457]

Answer:

1. If Adam burns 850 calories per hour

850×3=2550 calories for 3 hours

2. If the original price is 200$ and the discount is 30%

We get:

200 × 30

Which can be written as

200×0.3

=60

So 30% of 200 is 60

now to calculate the new price

200-60=140$

The new price is 140$

3 0
3 years ago
What is the solution to the equation A/2= -5
murzikaleks [220]

Answer:

A = -10

Step-by-step explanation:

A/2 = -5

Multiply both sides by the denominator of the fraction

We have A/2 x2 = -5 x 2

A = -10

3 0
3 years ago
Read 2 more answers
Graph the equation y = x + 1<br> Show Your Work<br> .<br> 2<br> 1
SCORPION-xisa [38]

Answer:

y intercept is one and slope is one

Step-by-step explanation:

4 0
3 years ago
A metal worker has several 1-kilogram bars of a metal alloy that contain 23% copper and several 1-kilogram bars that contain 79%
astraxan [27]

Answer:

30 each of 23% bars and 18 each of 79% bars

Step-by-step explanation:

If x is the number of 1 kg 23% copper bars, and y is the number of 1 kg 79% copper bars, then:

x + y = 48

0.23x + 0.79y = 0.44(48)

Substituting and solving:

0.23x + 0.79(48-x) = 0.44(48)

0.23x + 37.92 - 0.79x = 21.12

16.8 = 0.56x

x = 30

y = 48 - x

y = 18

You need 30 each of 23% bars and 18 each of 79% bars.

4 0
3 years ago
10th grade geometry ASAP PLZ HELP
iogann1982 [59]
Angles in a line = 180
180-165 = 15 degrees

15 + 45 + ? = 180
60 + ? = 180
? = 120
7 0
2 years ago
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