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densk [106]
3 years ago
14

Gabby earned $70 selling 10 bracelets. How many bracelets does she need to sell to earn $210?

Mathematics
2 answers:
ehidna [41]3 years ago
6 0

Answer:

30 bracelets

Step-by-step explanation:

$70/10 = $7 per bracelet

210/7 = 30

30x7 = 210

dsp733 years ago
5 0

Answer:

30 bracelets

Step-by-step explanation:

210 - 70 = 140

30 bracelets

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3 years ago
Complete the table of values
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Both problems give you a function in the second column and the x-values. To find out the values of a through f, you need to plug in those x-values into the function and simplify! 

You need to know three exponent rules to simplify these expressions:
1) The negative exponent rule says that when a base has a negative exponent, flip the base onto the other side of the fraction to make it into a positive exponent. For example, 3^{-2} =
\frac{1}{3^{2} }.
2) Raising a fraction to a power is the same as separately raising the numerator and denominator to that power. For example, (\frac{3}{4}) ^{3}  =  \frac{ 3^{3} }{4^{3} }.
3) The zero exponent rule<span> says that any number raised to zero is 1. For example, 3^{0} = 1.
</span>

Back to the Problem:
Problem 1 
The x-values are in the left column. The title of the right column tells you that the function is y =  4^{-x}. The x-values are:
<span>1) x = 0
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y = 4^{-x}\\&#10;y = 4^{-0}\\&#10;y = 4^{0}\\&#10;y = 1
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2) x = 2
</span>Plug this into y = 4^{-x} to find letter b:
y = 4^{-x}\\ &#10;y = 4^{-2}\\ &#10;y =  \frac{1}{4^{2}} \\  &#10;y= \frac{1}{16}
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3) x = 4
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Problem 2
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<span>1) x = 0
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y = (\frac{2}{3})^x\\&#10;y = (\frac{2}{3})^0\\&#10;y = 1
<span>
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</span>Plug this into y = (\frac{2}{3})^x to find letter e:
y = (\frac{2}{3})^x\\ y = (\frac{2}{3})^2\\ y = \frac{2^2}{3^2}\\&#10;y =  \frac{4}{9}
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3) x = 4
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<span>
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Answers: 
a = 1
b = </span>\frac{1}{16}<span>
c = </span>\frac{1}{256}
d = 1
e = \frac{4}{9}
f = \frac{16}{81}
5 0
3 years ago
Find the measure of angle 1<br><br> A. 90<br> B. 110<br> C. 180
oee [108]

Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

use the radius, 3 squared

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7 0
3 years ago
The basketball team scored 82 points from 2- points anf 3-points baskets. They make 38 baskets altogether. Let a represent the n
dexar [7]

Answer:

The System of linear equations are:

2a+3b = 82  

a+b=38

Step-by-step explanation:

Here, a represents the number of 2-points and b represent the number of 3-point basket.

As per the statement:

The basketball team scored 82 points from 2- points and 3-points baskets.

⇒ 2a+3b = 82  

It is also given that: They make 38 baskets altogether.

⇒a+b=38

therefore, the system of linear equations are:

2a+3b = 82  

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7 0
3 years ago
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