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Genrish500 [490]
3 years ago
7

Solve. √ x + 4 = x - 2 A.5 B. -2,3 C.10 D.no real number solution

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
3 0

Answer:

i think the answer is b

Step-by-step explanation:

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The following points are the vertices of a shaded triangle. (2,5), (6,−3), (−2,−3) a. Write a system of linear inequalities repr
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Find the mean of these numbers : 35,42,41,32,30
abruzzese [7]

Answer:

156

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Tyler baked 702 cookies he sold them in boxes of 18 after selling all of the boxes of cookies for the same amount of each he ear
jenyasd209 [6]

Keywords:

<em>Cookies, boxes, sale, profit, unit cost </em>

For this case we have to bake an amount of 702 cookies, which were distributed in boxes of 18 for sale. Selling each box at the same price earned a profit of 136.50 dollars, you want to know the unit cost of each box of cookies.

Let "x"be the number of boxes of cookies:

So, to know the number of boxes we divide 702 cookies among 18:

x = \frac {702} {18}\\x = 39

So, we have Tyler sold 39 boxes of cookies

Now, let "y" be the cost of each box of cookies, to know the unit cost or sale price of the cookie boxes, we divided 136.50 dollars among 39 boxes of cookies, then:

y = \frac {136.50} {39}\\y = 3.5

Thus, the cost of each box was 3.5 dollars.

Answer:

The cost of a box is 3.5 dollars

5 0
3 years ago
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Samuel used 1/5 of an ounce of butter to make 1/15 of a pound of jelly. How many ounces of butter are needed to make a pound of
vredina [299]
Set up ratio problem

.2 oz butter / (1/15) lb jelly = x / 1 lb jelly

Then cross multiply the stuff opposite each other in the fractions... set it up as a multiplication problem

.2 × 1  = (1/15) × x 

.2 = (1/15)x

Multiply both sides of equation by 15 to clear out the (1/15) fraction and get x 

x = 3
8 0
3 years ago
What is the x intercept of f(x)=x^2+7x+2? And how do you solve it?
Kitty [74]

Answer:

Since that is a quadratic equation, it will have 2 "x" intercepts.

x^2+7x+2

a = 1   b = 7   c = 2

You would solve for "x" using the quadratic formula.

x = [ -b +- sq root (b ^ 2 - 4 a c) ] / 2 a

x = [ -7 +- sq root (7^2 - 4*1*2) ] / 2 * 1

x = [ -7 +- sq root (49 -8) ] / 2

x1 = [-7 + 6.4031242] / 2

x1 =  -.29844

x2 = [-7 - 6.4031242] / 2

x2 = -6.7016

Step-by-step explanation:

4 0
3 years ago
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