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3 years ago

5

Students at Jefferson Elementary School made $3,045 selling 210 equally priced boxes of candy. Which is the best estimate for th

e amount each box cost?

2 answers:

FromTheMoon [43]3 years ago

5 0

Answer:

kjhvudyydxdcd

Step-by-step explan vfvvf o mb ation:

Novosadov [1.4K]3 years ago

4 0

3,045 = 210x

3,045/210 = 14.5

A good estimate of the cost would be:

$14.50

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Frank invested $30,000 at 4% simple interest. How much interest will he earn each year?

Oduvanchick [21]

Answer:

$1200 interest

Step-by-step explanation:

$30,000 divided by 100 = 300 , 300 multipled by 4 = 1200 , thats how to find what 4% would be

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2 years ago

What is the value of 4(3x + 5) when x = 11?

navik [9.2K]

Answer:

152

Step-by-step explanation:

3(11)= 33

4(33+5)

4(33)=132

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132+20=152

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3 years ago

2<br> 2. Evaluate (a + y)+ 2y if a = 5 and y = -3.<br> F 58<br> G -2<br> H 70<br> J 10

NARA [144]

<h3>Answer: G) -2</h3>

=======================================================

Explanation:

I'm assuming you meant to say (a+y)^2 + 2y

Replace each copy of 'a' with 5. Replace each copy of 'y' with -3. Use PEMDAS to simplify.

(a+y)^2 + 2y

(5 + (-3))^2 + 2(-3)

(5-3)^2 + 2(-3)

(2)^2 + 2(-3)

4 + 2(-3)

4 - 6

-2

So (a+y)^2 + 2y = -2 when a = 5 and y = -3.

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3 years ago

If x = -2, then the equation is 2x = -4.<br><br><br> True<br> or<br> False

Alex777 [14]

Answer:

true

Step-by-step explanation:

2(-2)=-4

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3 years ago

URGENT MATH HELP BRAINLIEST

Lelechka [254]

Answer:

Step-by-step explanation:

a. This is a right triangle with two sides and one angle given.

-We apply Sine Rule to find the angle B:

$\frac{a}{Sin \ A}=\frac{b}{Sin \ B}=\frac{b}{Sin \ C}$

-The sides given are 10and 17 and the right angle 90°

$\frac{17}{Sin \ 90 \textdegree}=\frac{10}{Sin \ m\angle B}\\\\m\angle B=Sin^{-1}\frac{10}{(17/Sin \ 90\textdegree)}\\\\=36.03\textdegree$

Hence the angle B is 36.03°

b.We again use the sine rule to obtain the unknown angle w:

-15 corresponds to 90° and 9 corresponds to w°

$\frac{a}{Sin \ a}=\frac{b}{Sin \ B}\\\\\frac{15}{Sin \ 90\textdegree}=\frac{9}{Sin \ w\textdegree}\\\\\\\\w=Sin^{-1}(\frac{9}{15}), \ \ Sin \ 90\textdegree=1\\\\=36.87\textdegree$

Hence, the measure of w is 36.87°

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3 years ago