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Veronika [31]
2 years ago
6

Maggie has 20 buttons which is 4 times more than the 5 zippers she has. 20 is 4 times as many as 5. What is the equation to matc

h this comparison sentence
Mathematics
1 answer:
Elina [12.6K]2 years ago
5 0

Answer:

  20 = 4 × 5

Step-by-step explanation:

The translation from English is straightforward. "is" means "=". "times" is usually represented by "×" or a raised dot (·).

  20 is 4 times 5

translates to

  20 = 4 × 5

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Which expression is equivalent to 2(x+7)-18+4/5 ?
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4.7/5

Step-by-step explanation:

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(4+7-1÷5)÷1.2+2.5×3-0.2​
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The final answer to tour problem 16.3
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Step 1

Step-by-step explanation:

You should isolate the variable, not try to get rid of it. Also, you have to divide both sides by the same number or variable(can't divide one side by a and the other side by 7- it has to be the same).

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13. What does a correlation coefficient of r = - 0.97 generally imply about the graph of a data set?
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6 0
2 years ago
Can any kind soul help me ASAP!​
CaHeK987 [17]

Answer:

Hope it helps u

Step-by-step explanation:

As we know that ,

Mean = sum of the terms/ numbers of terms

But here grouped data is given so , we use the formula

Mean=∑[f. m]/ ∑f

where f is frequency and m is mid point of each height ,

Now first we have to find the mid point of each interval, where

midpoint of each interval = (lower boundary + upper boundary)/2

m1=(150+154)/2 = 152

m2=(155+159)/2= 157,now found other by same formula, for each interval

m3= 162

m4= 167

m5=172    Now we find the midpoint of each interval ,so now

∑[f. m]=f1*m1+f2*m2+f3*m3+f4*m4+f5*m5

now putting the values of each frequency for given interval and midpoint of each interval we will get,

∑[f. m]=456+942+1296+167*x+344 = 167*x+3038

Now find,

∑f=f1+f2+f3+f4+f5

∑f=19+x

Now we have,

∑[f. m]=167*x+3038

∑f=19+x

also given mean height=161.6 cm

putt these values in above equation we get,

161.6=\frac{167*x+3038}{19+x}

now solve this ,

161.6(19+x)=167*x+3038

3070.4+161.6*x=167*x+3038

3070.4-3038=167*x-161.6*x

32.4=5.4*x

x=32.4/5.4

<h2>x=6   Ans........</h2>

3 0
3 years ago
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