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Paraphin [41]
2 years ago
8

The difference between seven times a number and eight more than four times the number

Mathematics
2 answers:
xz_007 [3.2K]2 years ago
7 0

Seven times a number = 7x
Eight more than four times the number = 8 + 4x
.
Suppose x = 5 ,
7x = 7×5 = 35 and
8 + 4x = 8 + 4×5 = 8 + 20 = 28

Nookie1986 [14]2 years ago
3 0

A difference is the result of a subtraction.

Call the number n.

"seven times a number": 7n

"eight more than four times the number": 4n + 8

"The difference between seven times a number and eight more than four times the number": 7n - (4n + 8)

Answer: 7n - (4n + 8)

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Approximately 32,400 citizens of the country died in 2015. Express the toll in deaths per day
Zigmanuir [339]

There is 90 deaths per day.

First it tells us 32,400 people died in 2015, which also mean that many people died that year.

We have to find the number of people died each month first.

32,400÷12 because 12 is the total number of months in a year.

2700 people died in a month, not we need to find how many people died each day so we divided it by 30 and we get

90 deaths per day.

8 0
3 years ago
Simplify the expression of 1.2x + 3y - 3 - 4.7x by combining like terms. ASAP
EastWind [94]

Answer:

-3.5x + 3y - 3

Step-by-step explanation:

1.2x + 3y - 3 - 4.7x

=> -3.5x + 3y - 3

Therefore, our simplified expression is -3.5x + 3y - 3

Hoped this helped.

5 0
2 years ago
Read 2 more answers
Which is the measure of ∠XYZ?
AlladinOne [14]

Answer:

you get the measure of angle XYZ by adding the measures of angles XY? and ZY?

70 +35 = 105 degrees is the measure of angle XYZ

7 0
2 years ago
Joan is 4 feet 2 inches tall. There are 2.54 centimeters in 1 inch. What is Joan’s height in centimeters?
Montano1993 [528]

Answer:

Well its 127

Step-by-step explanation:

4 feet = 48 inches. 2.54 = 1 inch. SOOOOOOOOO. 2.54 x 48 + 2 = 127 :DD

3 0
3 years ago
Read 2 more answers
The point (8,-4) lies on a circle. What is the length of the radius of this circle if the center is located at (5,-7)
Kamila [148]
Notice the picture, the radius is just the distance from the
center to a point on the circle, thus

\bf \textit{distance between 2 points}\\ \quad \\\\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{5}}\quad ,&{{ -7}})\quad 
%  (c,d)
&({{ 8}}\quad ,&{{ -4}})
\end{array}\qquad 
%  distance value
\\\\\\
\begin{array}{llll}
d = &\sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}\\
&\qquad \uparrow \\
&radius
\end{array}

\bf \begin{array}{llll}
d = &\sqrt{({{ 8}}-{{ 5}})^2 + ({{ -4}}-{{(-7)}})^2}\\
&\qquad \uparrow \\
&radius
\end{array}
\\\\\\
d=\sqrt{(3)^2+(-4+7)^2}\implies d=\sqrt{3^2+3^2}\implies d=\sqrt{18}
\\\\\\
d=\sqrt{9\cdot 2}\implies d=\sqrt{3^2\cdot 2}\implies d=3\sqrt{2}



4 0
3 years ago
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