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laiz [17]
2 years ago
15

Seven more than twice a number is 23.

Mathematics
2 answers:
pishuonlain [190]2 years ago
5 0

Answer:

x=8

Step-by-step explanation:

In other words, you are looking for a number (x) that if you multiply it by two (same as twice) and then add 7, you get 23.

To solve this, you first write the problem as an algebra equation as follows: 2x + 7 = 23

Then you solve the equation by subtracting 7 from both sides, and then divide both sides by 2. Here is the math to illustrate better:

2x + 7 = 23

2x + 7 - 7 = 23 - 7

2x = 16

2x/2 = 16/2

x = 8

marissa [1.9K]2 years ago
3 0

Answer:

i think it is 16

Step-by-step explanation:

16 + 7 = 23

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Amelie's dog weighs 47.17 pounds. Amelie's dog weighs 5.3 times as much as Evan's dog.
kupik [55]

Answer:

8.9 lb

Step-by-step explanation:

I divided 47.17 by 5.3

47.17÷5.3= 8.9

then to check my answer I multiplied 8.9 by 5.3 and got 47.17

hope this helps <3

4 0
4 years ago
Bob eats 1/4 ounce of cheese. One serving of cheese is 1 1/2 ounces. How much of a serving did he eat?
katen-ka-za [31]

Answer:

1/6 serving

Step-by-step explanation:

1 SERVING = 3/2 OUNCES

        x        = 1/4 OUNCES

<u>CROSS MULTIPLY.</u>

1 * 1/4 ( serving * ounces) = x * 3/2 (ounces)

<u>REARRANGE, THEN DIVIDE BOTH SIDES BY </u><u>3/2 OUNCES</u><u> TO MAKE </u><u>x </u><u>THE SUBJECT.</u>

x * 3/2 (ounces) = 1 * 1/4 ( serving * ounces)

[x * 3/2 (ounces)] / 3/2 OUNCES = [1 * 1/4 ( serving * ounces)] / 3/2 OUNCES

x = (1/4) / (3/2) SERVING

x = 1/4 * 2/3 (serving)

x = 1/2 * 1/3 (serving)

x = 1/6 serving

Please thank, rate 5 stars and give brainliest. Thank you. i hope you understand!

6 0
3 years ago
PLEASE HELP ME WITH THANKS :)
Maurinko [17]

Answer

12855.04 ft³

Step-by-step explanation:

regular Octagon consists of 8 congruent triangles

B = (13.28 x 11) / 2 x 8=584.32

V = BH = 584.32 x 22 = 12855.04

8 0
3 years ago
Read 2 more answers
How many 3/4s are in 2
dusya [7]
How many three-fourths are in 2? 2 complete sets of three-fourths can be made and 2 of the 3 pieces need to make \frac34 are left over, so we have another \frac23 of a three-fourths. and we can see that there are 2 wholes with 4 fourths in each whole, so there are 2\times 4 fourths in 2.
5 0
3 years ago
Read 2 more answers
What polynomial should be subtracted from the polynomial y2–5y+1 to get the difference equal to 5
VMariaS [17]

Answer: The polynomial

= y² - 5y - 4.

Step-by-step explanation:

Let the polynomial = f(y)

Therefore

y² -5y + 1 - f(y) = 5

f(y) = y² - 5y + 1 - 5

f(y) = y² - 5y - 4

The polynomial = y² - 5y - 4.

Check:

y² - 5y + 1 - ( y² - 5y - 4)

Open the bracket with the minus

y² - 5y + 1 - y² + 5y + 4

y² - y² - 5y + 5y + 1 + 4

= 0 - 0 + 5

= 5.

3 0
3 years ago
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