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madam [21]
2 years ago
6

Evaluate a - b if a = 5 and b = 7.

Mathematics
2 answers:
maxonik [38]2 years ago
8 0

Answer:

5 - 7

Step-by-step explanation:

a - b

5 - 7 = -2

Alenkinab [10]2 years ago
3 0
5-7.
a = 5
b = 7
a - b = 5 - 7
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OlgaM077 [116]
Change the 4 4/5 to an improper fraction so 24/5. Then divide 24 by 2 which gives you 12. So the answer is 12 2/5 foot pieces can be cut from 4 and 4/5

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3 years ago
A person leaves home at 8:00 a.m. and drives to a destination at a rate of 40 mph. The person returns at a rate of 25 mph and ar
olga55 [171]
It's 100 miles that's the answer
5 0
3 years ago
Read 2 more answers
Ella completed 3/8 of a puzzle during recess on Tuesday. Joy completed two six of the same puzzle during recess on Wednesday. ho
gavmur [86]
Well u have to make the denominator the same so u multiply 3/8 by 3 and get 9/24, then multiple 2/6 by three and get 8/24. Add them, 9/24+8/24 and u get 17/24
6 0
3 years ago
What is the volume of a box with sidelines that are 20 inches use the formula B equals S3 where is S is the length of one side
anastassius [24]

Answer:

The volume of a box with sidelines that are 20 inches is 8000 cubic inches

Step-by-step explanation:

The volume of a box with sidelines that are 20 inches can be determined by using the formula

B = S³

Where S is the length of one side

and B is the Volume

From the question, the sidelines of the box are 20 inches. That is

S = 20 inches

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B = S³

B = (20 inches)³

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B = 8000 cubic inches

Hence, the volume of a box with sidelines that are 20 inches is 8000 cubic inches.

4 0
2 years ago
Three numbers X, Y, and Z are in the ratio 2:7:8. If 12 is subtracted from Y, then three numbers form a geometric sequence (in t
Dimas [21]
A geometric sequence is a sequence in which there is a common ratio between any two consecutive terms. In this case if X:Y:Z are in the ratio of 2:7:8 the multiplying by a constant k, we have X=2k, Y= 7k and Z=8k.
Then if  X, Y-12, Z form a Geometric sequence, it means X/Y-12=Y-12/Z which is the same as 2k/7k-12=7k-12/8k if we cross multply, we get
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k = 4 or 1.091 if we take the whole number  to find the values of X,Y and z,
X= 8, Y= 28 and Z=32 
3 0
3 years ago
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