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Lana71 [14]
3 years ago
14

Write a word problem for x/2+4=12

Mathematics
1 answer:
dezoksy [38]3 years ago
5 0

Answer:

Four more than half a number is twelve

Step-by-step explanation:

Four more than half a number is twelve

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A Cool Blue Gatorade has a mass of 30g and a volume of 355 mL. What is the density of the Cool Blue Gatorade?
MatroZZZ [7]

Answer:

p=m/v

Step-by-step explanation:

Steps:

ρ =  m/v  

30 gram / 355 milliliter

= 0.084507042253521  gram/milliliter

3 0
3 years ago
What is equivalent to a 60% decrease?
Elena-2011 [213]

Answer:

40% if whats left

Step-by-step explanation:

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3 years ago
The system of equations represented by lines p and q is shown on the graph below. Based on the graph, what is the solution of th
exis [7]

Answer:

C(2,1)

Step-by-step explanation:

8 0
3 years ago
Martina is 3 inches less than twice as tall as her little brother. Write an expression for Martina's height. How tall is Martian
Lyrx [107]

Answer:

Martina is 53 inches tall.

Step-by-step explanation:

In order to write an expression that relates the siblings heights we need to attribute variables to each brother. First we will call Martina's height as "m", then we can call her little brother's height as "b". The problem states that Martina's height is 3 inches less than twice the height of her brother so we have:

m = 2*b - 3

Then the problem gives us the height of her brother that is 28 inches tall, so b = 28. We can now compute Martina's height:

m = 2*28 - 3 = 56 - 3 = 53 inches.

4 0
3 years ago
The speed(S) of a car varies partly directly as its mass(M) and partly directly as the quantity (Q) of fuel in it. When the spee
weeeeeb [17]

Answer:

S varies partly directly as M and Q.

S=C.

S=KMQ+C.

For the first one...

speed=80,m=220,Q=30.

80=K20×30+C.

80=600K+C......(I).equation one.

For the second one....

speed=60,m=300,Q=40.

60=K300×40+C.

60=12000K+C.....(ii). equation two.

Minus eqtn(I) from eqtn(ii).

80=600K+C.

- 60=12000K+C.

K=0.01754~0.018.

Substitute K=0.018 into eqtn(I).

80=600K+C

80=600×0.018+C.

80=10.8+C.

C=80-10.8=69.2.

The relation is S=0.018MQ+69.2

when speed is 100 and mass is 250 find the volume.

100=0.018×250×Q+69.2.

100=4.5Q+69.2.

4.5Q=100-69.2

4.5Q=30.8.

Q=30.8/4.5.

Q=6.8~7litres.

6 0
3 years ago
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