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Reil [10]
3 years ago
13

For what value of the variable will the expression 8b−27 be equal to the following: 5

Mathematics
2 answers:
qaws [65]3 years ago
8 0

Answer:

We need to find the value of b to make 8b - 27 be equal to 5, so:

8b - 27 = 5

We solve the equation:

8b = 5 + 27

8b = 32

We divide both sides by 8:

b = 32/8 = 4

So now, we know that b=4, and we can verify:

8*4 - 27 = 5

32 - 27 = 5 TRUE

Ivan3 years ago
6 0

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Help help help help help show your solution​
sergiy2304 [10]

Step-by-step explanation:

1) 1 \: tsp. = 5ml

=  >  \frac{1}{4}  \: tsp. =  \frac{5}{4} ml = 1.25ml

2)1 \: oz. = 30gm

=  >  \frac{1}{2} oz. =  \frac{30}{2}  = 15gm

So,

1 \frac{1}{2} \:  oz. = 1oz. +  \frac{1}{2} oz.

=  > 30gm + 15gm = 45gm

3)250f = 120c

=  > 1f =  \frac{120}{250} c

=  > 125f =  \frac{120}{250}  \times 125 = 60c

4)\frac{1}{4} c = 60ml

=  > 1c = (60 \times 4)ml

=  >  \frac{1}{3} ml =  \frac{60 \times 4}{3}  = 80ml

5) \frac{1}{4} in. = 5mm

=  > 1in. = (5 \times 4)mm

=  >  \frac{3}{4} in. =  \frac{5 \times 4 \times 3}{4}  = 15mm

7 0
3 years ago
1+(2x3)-(-3)<br> plz explain how it equals 10
KengaRu [80]

Answer:

10

Step-by-step explanation:

Use order of Operations - PEMDAS

First, (2x3) = 6

Now you have, 1+6-(-3)

Then take the -(-3) and make it +3, cause a subtraction and negative sign make a positive.

Now you have, 1+6+3

Then add it all together to get 10

8 0
3 years ago
The perimeter of a rectangle with length l and width w is 44 inches. The area of the rectangle is at most 120. Which of the foll
drek231 [11]
Oh OK 
Perimeter = 2l + 2w = 44
l + w = 22
if l = 12 then w = 120/12 = 10
if l <_ 12 then w >_ 10

Its A 
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zvonat [6]
4 students per table
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4 years ago
What percent of 45 is 18
alexira [117]
4% of 45 equals 18.
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