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soldier1979 [14.2K]
3 years ago
9

Translate the phrases to algebraic expressions. The sum of 8 times a number and 3

Mathematics
2 answers:
ivolga24 [154]3 years ago
5 0

Answer:

8x+3

Step-by-step explanation:

Greeley [361]3 years ago
3 0

Answer:

8x + 3

Step-by-step explanation:

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Identify the percent change <br><br> 28 seconds to 23 seconds
Zarrin [17]
Percent change=change/original times 100
chane=28-23=5
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percent change=5/28 times 100
0.178 times 100
17.8

about 18% change
4 0
3 years ago
How can I solve -4x+y=29
vlada-n [284]

Answer:

Step-by-step explanation:

What variable are you solving for?

-4x+y=29

y=29-(-4x)

y=29+4x

y=4x+29

----------------

-4x=29-y

-4x=-y+29

x=1/4y+29/-4

y=1/4y-29/4

7 0
3 years ago
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someone is eating a 50 gram chocolate bar which contains 30% cocoa how many grams of cocoa is in the chocolate bar
DIA [1.3K]
Well , 10% is 5 g so if you times those 5 g by 3 it is 15 g there are 15 grams of cocoa in the chocolate bar
3 0
3 years ago
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Can someone help me round these two numbers? I completely forgot how ‍
tigry1 [53]

Answer:

Step-by-step explanation:

If you are rounding to nearest tenth

2.6  1.9

Nearest hundredth

2.6   1.87

If the number to the right of the one you want to round is 5 or above, you go up a number. If it's below, you go down 1.

Hope this helps.

5 0
3 years ago
The length of a rectangular piece of land is 9 cm more than 3 times its width. The perimeter is 418 cm. Find its dimensions.
SashulF [63]

Let w represent the width of the rectangle in cm. Then its length in cm is (3w+9). The perimeter is the sum of two lengths and two widths, so is ...

... 418 = 2(w + (3w+9))

... 209 = 4w +9 . . . . . . divide by 2, collect terms

... 200 = 4w . . . . . . . . subtract 9

... 50 = w . . . . . . . . . . divide by 4

... length = 3w+9 = 3·50 +9 = 159

The dimensions of this piece of land are 159 cm by 50 cm.

3 0
3 years ago
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