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Anna [14]
3 years ago
8

Rebecca and Megan are shopping at store that sells jewelry, scarves, and purses. The cost of all the items at the store include

tax.
Rebecca buys some scarves that cost $5 each and 2 purses that cost $12 each. The cost of Rebecca total purchase is $39. Which equation can be used to find n, the number of scarves that Rebecca buys?

A. 5+24n=39
B 5n+24=39
C (24+5)n=39
D 24*5+n=39
Mathematics
1 answer:
Virty [35]3 years ago
6 0
To answer this item, we let n be the number of scarves that Rebecca bought because the number is unknown. The total cost would be the sum of the amount paid for n scarves and 2 purses. The equation would then be,
                                     5n + (12)(2) = 39
Simplifying,
                                      5n + 24 = 39

Thus, the answer is letter B. 
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Step-by-step explanation:

Given that,

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Jamal is baking 4 batches of chocolate chip cookies. He needs 2 13 cups of sugar for each batch. Which expression could be used to determine the total amount of sugar that Jamal needs?

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Step-by-step explanation:

Hey there!

From the given figure;

Angle ABE = 90°.

And angle ABC= [(3x+7)° + (5x+11)°].

Now, Angle ABE + Angle ABC= 180° [Being linear pair].

or, 90° + (3x+7)° + (5x+11)°= 180°

or, (3x+7)° + (5x+11)°= 90°

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or, X = 9°

Therefore, X= 9°.

Now,

Angle DBC = (5*9+11)°

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Therefore, the measure of angle DBC is 56°.

Hope it helps!

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