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Stolb23 [73]
2 years ago
8

I need help its for 7th grade math​

Mathematics
1 answer:
Oliga [24]2 years ago
5 0

Answer:

4:20

Step-by-step explanation:

because there are 20 teachers in all and 4 science teachers so your chances of getting a science teacher are 4 out of 20

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Aleks04 [339]

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Step-by-step explanation:

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3 years ago
Countering a cost $9.40 per sales tax. After sales tax, it cost $9.87. What is the sales tax rate?
Nady [450]
STEP 1:
find the sales tax (decimal form)

x= sales tax

Cost + (Cost * Sales Tax)= Total
plug in known numbers

$9.40 + ($9.40 * x)= $9.87

9.40 + 9.40x= 9.87
subtract 9.40 from both sides

9.40x= 0.47
divide both sides by 9.40

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STEP 2:
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ANSWER: The sales tax is 5% (or 0.05 in decimal form)

Hope this helps! :)
6 0
2 years ago
Read 2 more answers
The area of the triangle is 28.7 square centimeters. What is the base length of the triangle in centimeters?
Montano1993 [528]

In order to derive the base of a triangle from its area, you need its height as well.

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b=\dfrac{2\cdot 28.7}{h} = \dfrac{57.4}{h}

where h is the height relative to the base you're interested in.

3 0
3 years ago
Can someone help me simplify this?
ziro4ka [17]
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=14 + 3i +12 + 7i + 6 + 2i
=32 + 12i
7 0
3 years ago
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