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jekas [21]
3 years ago
5

The sum of twice a number and seven is twenty five

Mathematics
1 answer:
Mama L [17]3 years ago
3 0
9

Because 9x2 is 18+7=25
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Solve each equation:
omeli [17]
You sure seem to be asking a lot of questions lately. I'd like to see that you've been trying with these problems at least because if you can't get that first one it's almost like you missed the whole lesson.

1. 20 = 4b + 7 + 5
Add the 7 and 5.
20 = 4b + 12
Subtract 12 from each side.
8 = 4b
Divide each side by 4.
2 = b

2. 7 = 6k - 7k
6k - 7k = -1k. (the k acts as a sort of unit)
7 = -1k
Divide each side by -1.
-7 = k

3. 3.23 - 2m = 3 - 2(5m - 2)
Distribute the ×-2 to each term inside the parentheses.
3.23 - 2m = 3 - 10m + 4
Add the 3 and 4.
3.23 - 2m = 7 - 10m
Add 10m to each side.
3.23 + 8m = 7
Subtract 3.23 from each side.
8m = 3.77
Divide by 8.
m = 0.47125

4. -88/45=1/3r+2/5r
To get rid of the fractions, let's multiply everything by 45.
-88 = 15 + 18r
Subtract 15 from each side.
-103 = 18r
Divide by 18.
-103/18 = r
As a mixed number, r = -5 and 13/18
As a decimal, r = -5.7222...
6 0
3 years ago
Write a rule for the function represented by the table.​
Leto [7]

y=19x+9 would be the rule

7 0
3 years ago
Someone please help me ASAP
Ivanshal [37]

Step-by-step explanation:

a vector multiplied by a scalar is equal to it's image. The expression above gives an equation and after solving, it gives you the image

7 0
3 years ago
Factor each expression 8+16
astraxan [27]
<span>The individual factors for each integer along with the common factors and greatest common factor will be shown. Factors of 18 are 1, 2, 3, 6, 9, 18. Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36. Factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48.</span>
6 0
3 years ago
Read 2 more answers
You earn $9 per hour. Which equation shows the relationship between the time worked in hours, t, and the money earned in dollars
luda_lava [24]

Answer:

m=9t

Step-by-step explanation:

to figure out how much money you earned, you have to multiply how long you worked by the amount you get paid

6 0
3 years ago
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