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Zinaida [17]
3 years ago
5

Need math help please

Mathematics
2 answers:
solmaris [256]3 years ago
7 0

Answer:

it is 4

Step-by-step explanation:

3 times 4 = 12 and 12 + 8 = 20

brainliest plz!!!


vladimir2022 [97]3 years ago
7 0

Answer:

x = 4

Step-by-step explanation:

the dimensions of the small triangle to the large triangle are increasing by multiplying by 5.

5 times 5 equals 25

3 times 5 equals 15

so 4 times 5 equals 20

then, you have to solve the equation:

20 = 3x + 8

subtract 8 from both sides

12 = 3x

divide both sides by 3

12 divided by 3 equals 4

so x = 4


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Tell what whole number you can substitute for xx in the following list so the numbers are ordered from least to greatest. 1/x,x/
olasank [31]
X/3 has to be smaller tha 80%
so x can be 2 since 2/3=66% about
1/2 is less thn 2/3

answer is x is 2
4 0
3 years ago
Read 2 more answers
Simplify 7(A-6)<br> A-6<br> 7A-42<br> 7A-6
leva [86]

Answer:

7A - 42

Step-by-step explanation:

7(A-6)

Distribute

7*A - 7*6

7A - 42

6 0
3 years ago
two brothers marco and fernando are training for a marathon marco runs at a rate of 6miles per hor. Fernando funs at at a rate o
satela [25.4K]
We know that
speed=distance/time
solve for time
time=distance/speed

in this problem
<span>Marco runs at a rate of 6 miles per hour. 
</span><span>Fernando funs at a rate of 7.2 miles per hour
Difference=7.2-6=1.2 miles/hour
so
speed=1.2 miles/hour
distance=0.3 miles
time=?
</span>time=distance/speed-----> 0.3/1.2-----> 0.25 hour-----> 0.25*60=15 minutes
<span>
the answer is
0.25 hour (15 minutes)

Alternative Method
Let 
x---------> Fernando's distance when Marco is 0.3 miles apart

</span>Fernando funs at a rate of 7.2 miles per hour
<span>for distance =x
time=x/7.2------> equation 1

</span>Marco runs at a rate of 6 miles per hour. 
for distance=x-0.30
time=(x-0.30)/6------> equation 2

equate equation 1 and equation 2
 7.2*(x-0.3)=6x-----> 7.2x-2.16=6x
7.2x-6x=2.16------> x=2.16/1.2-------> x=1.8 miles

time=x/7.2-----1.8/7.2=0.25 hour
6 0
4 years ago
What is the quotient of 6,135 and 15
zavuch27 [327]

Answer:

409

Step-by-step explanation:

7 0
3 years ago
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Gain finds a skirt that she likes at the store for $45.99. If the tax rate is 5.8%, how much will the shirt cost in all
Aleks04 [339]

Answer:

$48.66

Step-by-step explanation:

The price of a good is the base cost plus tax. We are given the cost of the skirt, so all we need is the amount of tax. To find it, we multiple the cost of the  skirt by the tax rate:

45.99 * 0.058 = 2.67

We now add the tax to the cost of the skirt:

45.99 + 2.67 = 48.66

As you can see, we are adding the price of the skirt to 5.8% of the skirt's price, so we can also solve the problem by simply multiplying the cost by 1.058 as shown below:

45.99 * 1.058 = 48.66

4 0
4 years ago
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