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Hatshy [7]
3 years ago
6

Please help with 13-16. All help appreciated.

Mathematics
1 answer:
ivolga24 [154]3 years ago
6 0
The answer is negative three
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Find the solution to the system by the substitution method. Check your answer.
polet [3.4K]

Answer:

#1 x=44+7y

#2

x =10  +    \frac{y}{5}

Step-by-step explanation:

used math.way hope this helps

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3 years ago
Rewrite the expression with rational exponents as a radical expression. 7 times x to the two thirds power
Daniel [21]

Answer:

(7x)^{\frac{2}{3}}=\sqrt[3]{49x^{2} }

Step-by-step explanation:

We have been given the expression;

7 times x to the two thirds power which can be written mathematically as;

(7x)^{\frac{2}{3}}

To express the above expression as a radical, we need to recall that;

a^{\frac{b}{n}}=\sqrt[n]{a^{b}}

Therefore;

(7x)^{\frac{2}{3}}=\sqrt[3]{(7x)^{2} }\\\\=\sqrt[3]{49x^{2} }

6 0
3 years ago
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Your favorite cookie contains 10 grams of fat. If you eat no less than 4 cookies and no more than 7 cookies, how many grams of f
Sergio039 [100]

Well, if each cookie contains 10g of fat, then...

4 cookies = 4*10 = 40g fat

7 cookies = 7*10 = 70g fat

I can only eat 4 to 7 cookies. So that means I had between 40 and 70 grams of fat.

Answer: a. Between 40 and 70 grams.

6 0
3 years ago
What type of triangle is shown?
jeka57 [31]

Answer:

c. isosceles

Step-by-step explanation:

the base angles are the same

5 0
3 years ago
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Does anyone know the answer?
azamat

Answer:

1=163 degrees

2=×=10 degrees

3=×=3

Step-by-step explanation:

54x+1+9x-10=180 we are using this expression because alternate angles add up to 180 degrees

54x+9x+1-10=180

63x-9=180

63×=180+9

63×=189

63×÷63×=189÷63×

X=3

Angle in bold print is (54x+1)

54×3=162

162+1=163 degrees

No.2 Find x

7x+35+x+65 =180

7x+x+35×65=180

8x+100=180

8x=180-100

8x=80

8x÷8x=80÷8

X=10 degrees

No.3 Find x

54x+1+9x-10=180

54x+9x+1-10=180

63x-9=180

63x=180+9

63x=189

63x÷63x=189÷63

X=3

I hope I was of help

6 0
3 years ago
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