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allochka39001 [22]

2 years ago

13

A cream is sold in a 38 gram container. the average amount of cream used per application is 2 5/7 gram. how many applications ca

n be made with the container?

1 answer:

aliina [53]2 years ago

4 0

Answer:

The answer to the problem should be 14

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Darina [25.2K]

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the slope is -1/2 or -.5

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3 years ago

You but $10.83 worth of groceries at the store. You pay $0.60 in tax. What is the sales tax rate?

Ymorist [56]

$18.05 if I am not mistaken.

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3 years ago

Arthur did not go to school for 36 days in a year. If his absence from school is 15 %, find the number of days the school opened

Gwar [14]

Answer:

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Step-by-step explanation:

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8 0

3 years ago

2n²+3n=27 <br><br>2t²-162=0 <br>find the roots of each equation.

ASHA 777 [7]

Answer:

$n = 3, n=-\frac92; t=9, t=-9$

Step-by-step explanation:

Second one is faster, so let's get rid of it first.

Divide by 2 to make numbers easier, and we get

$t^2-81 = 0$ . You should recognize 81 is 9 squared, and both $-9$ and $+9$ , when squared, give 81, we have our solution.

Now the first. I can't spot any quick trick to solve it, so quadratic formula it is. Let's rememer it: if

$ax^2 +bx+c=0$ then

$x={{-b \pm \sqrt{b^2-4ac}}\over 2a$

Let's bring the first equation in the standard form and calculate the quantity over the square root (usually called with the greek letter delta, $\Delta$ ) to the side.

$2n^2+3n-27 =0\\\Delta = (3)^2 -4(2)(-27) = 9+(8)(3)(9) = 9(1+24)= 9 \cdot25 =(3\cdot5)^2$

now we can apply the formula:

$n={{-3\pm15}\over4}$ Let's split the two cases now

$n= \frac{-3+15}4 = \frac{12}4=3\\n= \frac{-3-15}4 = \frac{-18}4 =-\frac92$

5 0

3 years ago

Eric studied dogs for a class project . his project showed that there are 156 breeds of dogs. he separated the breeds into 12 gr

Vladimir [108]

If you divide 156 by 12 it'll give you 13, so there are 13 in each group

4 0

3 years ago

Read 2 more answers