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Lelechka [254]
3 years ago
15

For 2 consecutive integers, the result of adding the

Mathematics
1 answer:
Margaret [11]3 years ago
7 0
n+3(n+1)=79\\\\n+3n+3=79\\\\4n=79-3\\\\4n=76\ \ \ \ /:4\\\\n=19\\\\n+1=20\\\\Answer:B.\ 19\ and\ 20.
You might be interested in
How to solve it step by step <br> -8+4(1+5n)=-6n-14
oksano4ka [1.4K]

Answer:

n = -5/13

Step-by-step explanation:

-8+4(1+5n)=-6n-14  (from PEDMAS, expand parenthesis first)

-8+1(4) +5n(4)=-6n-14

-8+4 +20n=-6n-14

-4 + 20n = -6n -14  (add 6n to both sides)

-4 + 20n + 6n =  -14

-4 + 26n = -14  (add 4 to both sides)

26n = -14 + 4

26n = -10  (divide both sides by 26)

n = -10/26 = -5/13

5 0
3 years ago
On her way to her grandmothers house, Jackie traveled 3 times as many miles by train as by bus. She travelled 4 times as many mi
Vera_Pavlovna [14]

Answer:

22 because it is just a train that they are talking about not how long it takes to get to grandmas house

3 0
3 years ago
A pair of shoes usually sell for $63. If the shoes are 40% off, and a sale tax of 7% is allied to discount cost, what is the tot
faust18 [17]

Answer:

$42

Step-by-step explanation:

40% of $63 is $25.2

$63 - $25.2 = $37.8

How much your paying without tax 37.8

7% of $63 is $4.41.

$37.8 + $4.41 = $42.21

Rounded 42.21 = 42

Im not 100% sure about the rounding but I hope this helps!

6 0
3 years ago
Can somebody number the problem and work it out for me thanks and btw it’s solving system by graphics
adoni [48]

Answer:

Solutions are (3,1) and (4,2)

Step-by-step explanation:

Graph is shown in the attached sheet

Given are two systems of equations and we have to solve them using graph

For graphing let us first prepare table for x and y.

1) y=\frac{-2x}{3} +3:\\y=2x-5

I line                                                             II line

x     0   4.5    3                              x       0      2.5     3

y      3   0       1                              y       -5      0        1

The two lines intersect at (3,1)

Hence solution is (3,1)

--------------------------------------------

2) y=\frac{x}{2} \\-6x+3y=-18

I line                                                             II line

x     0    2    4                              x       0      6     4

y      0   1      2                             y       3      0     2

The two lines intersect at (4,2)

Hence solution is (4,2)

3 0
2 years ago
B
dolphi86 [110]

Answer: B, C,D

Step-by-step explanation:

8 0
3 years ago
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