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Kisachek [45]
4 years ago
15

Find x when y=6 in the literal equation 5x+4y=39A. 12.6B. 15C. 2.25D. 3​

Mathematics
1 answer:
muminat4 years ago
8 0

Answer:

y=6

then,

5x+4y=39---> plug y in to the function

5x+4(6)=39

5x+ 24=39

5x= 39-24

5x= 15

x= 15/5

x= 3

So, the value of x when y=6 in that function is 3 (D)

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A cylindrical can of baked beans has a diameter of 8 cm and a height of 9 cm.
strojnjashka [21]
Formula for volue of cylinder is area time height. Lets find area
A=\pi r^2
diameter=2r
8=2r
r=4
Now substitute r to A= \pi r^2
A=\pi 4^2= 16\pi
Now we have formula
V=16 \pi *height=16 \pi *9=144 \pi - its the result, so B 
7 0
4 years ago
19 - 5 (2m - 3) + 9m = 36
sergij07 [2.7K]

Answer:

m = -2

Step-by-step explanation:

For this problem, we will simply solve the equation for m.

19 - 5 ( 2m - 3 ) + 9m = 36

19 - 10m + 15 + 9m = 36

34 - m = 36

-m = 2

m = -2

Hence, for this equation to be true, m must equal negative 2.

Cheers.

6 0
3 years ago
Peter mixes 4 1/2 cups of orange juice, 1 1/3 cups of ginger ale, and 6 1/3 cups of strawberry lemonade to make some punch. What
ella [17]
Just add them all:(FYI, I first converted all the mixed fraction to improper)
11/3+19/3= 30/3+9/2
Now take out the LCM,
60/6+27/6= 87/6
Hence, the total number of cups that peter makes is 87/6

3 0
3 years ago
Read 2 more answers
Combine like terms:<br> 2y^2 + 2(4y^2 − 3)
nadya68 [22]

Answer:

10y^2-6

Step-by-step explanation:

2y^2=2(4y^2-3)

2x4y^2=8y^2

2x(-3)=(-6)


2y^2+8y^2-6

10y^2-6

8 0
3 years ago
A regular hexagonal prism has a base area of 84.3ft^2 and a Volume of 337.2ft^3. What is the height of the prism? ​
vodka [1.7K]

Answer:

Height = 4 ft

Step-by-step explanation:

Base are : 84.3 ft square

Volume : 337.2 square cuboid

7 0
3 years ago
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