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wolverine [178]
3 years ago
13

Find the solution of this system of equations -4x-y=-18 -7x+y=-4

Mathematics
1 answer:
Arturiano [62]3 years ago
6 0
Except for doing this, how do be put in fractions?
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A recipe calls for 2 cup so of flour, 1/4 cup sugar, 1/3 cup milk. What Ismaili the total volume of the three ingredients?
Elden [556K]
Easiest would be just crosscheck 1 by 1,
like, first check for flour, he has 15 cups, i.e. 15/2.5 = 6 cups can be made.
then come to sugar, sugar per cup (if he wants to make 6 cups of recipe) = 16/6 = 2+2/3 (what he has), but he need 2+3/4; so not available.
<span>So, ans =5</span>
3 0
3 years ago
What is an equation of the line that passes through the point (3,- 1) and has a slope of 2
serg [7]

Answer:

y=2x-1

Step-by-step explanation:

M is the slope for 2 and B is the y int. of -1

Hope this helped!

6 0
3 years ago
Sum to n terms the series 7 +77 +777​
julia-pushkina [17]

Answer:

Step-by-step explanation:

=7 (1+11+111+1111......n)

=7/9 (9+99+999+9999....n)

=7/9 ((10-1)+(10^2-1)+(10^3-1)+....n)

=7/9 ((10+10^2+10^3...n)-(1+1+1+1.....n))

=7/9 ((10 (10^n-1)/(10-1))-n)

4 0
3 years ago
If a +b = 100, then the value of 3 (a+b) is:
STatiana [176]

<u>Given</u><u> info</u><u>:</u><u>-</u> If a +b = 100, then the value of 3 (a+b) is:

<u>Solution</u><u>:</u><u>-</u>

a + b = 100

Therefore, 3(a+b)

= 3(100)

= 300.Ans

Read more:

Similar Questions

Find the value of a*b* if n = 3, a = 100, and b=1/4..

brainly.com/question/15990855?referrer

7 0
3 years ago
What is the area of the shaded region?
Genrish500 [490]

Answer:

96

Step-by-step explanation:

base of triangle = 8

base of square = 8

height of triangle = 8

height of square =8

area of shaded region = 3 *ar(sq) - 3*ar(tri)

4 0
3 years ago
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