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3 years ago

Simplify -15.5/5. A −3.1 B 3.1 C −3.3 D 3.3

Mathematics

1 answer:

miskamm [114]3 years ago

6 0

The answer is C because a negative divided by positive is a negative

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Figure ABCD is a kite. Find the<br> value of x.

Dimas [21]

Answer:

x=20

Step-by-step explanation:

(triangle angles must add up to 180º)

2x+10+2x+90=180

4x+100=180

4x=80

x=20

7 0

3 years ago

The graph of f(x)=20(0.5)x is shown.

svp [43]

Answer:

C) f(2) = 5

Step-by-step explanation:

f(2) = 20(0.5)*2

f(2) = 2(10)

f(2) = 20

f(2) = 20 ≠ f(2) = 5

6 0

3 years ago

Please help me on this it’s due

olya-2409 [2.1K]

<h3>Answer: 5 cakes</h3>

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Explanation:

Let's start off converting the mixed number 12 & 1/4 to an improper fraction.

$a \frac{b}{c} = \frac{a*c+b}{c}\\\\12 \frac{1}{4} = \frac{12*4+1}{4}\\\\12 \frac{1}{4} = \frac{49}{4}\\\\$

Do the same for the other mixed number 2 & 1/3.

$a \frac{b}{c} = \frac{a*c+b}{c}\\\\2 \frac{1}{3} = \frac{2*3+1}{3}\\\\2 \frac{1}{3} = \frac{7}{3}\\\\$

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From here, we divide the two fractions. I converted them to improper fractions to make the division process easier.

$\frac{49}{4} \div \frac{7}{3} = \frac{49}{4} \times \frac{3}{7}\\\\\frac{49}{4} \div \frac{7}{3} = \frac{49\times 3}{4\times 7}\\\\\frac{49}{4} \div \frac{7}{3} = \frac{7\times 7\times 3}{4\times 7}\\\\\frac{49}{4} \div \frac{7}{3} = \frac{7\times 3}{4}\\\\\frac{49}{4} \div \frac{7}{3} = \frac{21}{4}\\\\$

The last step is to convert that result to a mixed number.

$\frac{21}{4} = \frac{4*5+1}{4}\\\\\frac{21}{4} = \frac{4*5}{4}+\frac{1}{4}\\\\\frac{21}{4} = 4+\frac{1}{4}\\\\\frac{21}{4} = 5 \frac{1}{4}\\\\$

Note that 21/4 = 5.25 and 1/4 = 0.25 to help check the answer.

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Therefore, she can make 5 cakes. The fractional portion 1/4 is ignored since we're only considering whole cakes rather than partial ones.

3 0

3 years ago

M. Jackson spends $500 per month for rent . His new apartment will cost him 10% more than he is paying now . How much is the ren

solniwko [45]

His new apartment will cost him "10% more" than what he is paying currently.

100% = current rent
10% = the extra amount he will pay for his new apartment
100% + 10% = new rent

100% + 10% = 110%

Now convert the percent into a decimal by moving the % sign two places to the left and make the % sign into a decimal point.

110% = 1.10

500 * 1.10 = 550

So, he will pay a rent of $550 for his new apartment.

3 0

4 years ago

Find the volume of each solid. Round to the nearest tenth if necessary. Use 3.14 for or<br> 22/7

Helen [10]

Answer:

half of 20 is 10

10 is your new radius so

10^2 = 100

100 x 3.14 = 314

Now we multiply by the height:

314 x 11 = 3,454 cm^3

5 0

3 years ago