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nevsk [136]
2 years ago
6

Please solve this a+7=2​

Mathematics
2 answers:
finlep [7]2 years ago
5 0
A+7 -7=2 -7
so basically A equals -5
Darya [45]2 years ago
3 0

Answer:

a=-5

Step-by-step explanation:

a<u>+7</u>=2

move the constant to the right

a=2<u>-7</u>

then calculate the difference

a=-5

So <u>a=-5 </u> is your answer

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Whats 95 closer to 64 or 125
Basile [38]
125-95=30
95-64=31
so it would be 125
6 0
2 years ago
erika has 3 pieces of ribbon.each piece id 25 yards long.she needs to cut pieces that are 22 inches long.what is the greatest nu
OlgaM077 [116]
There is 900in in 25 yards so 900*3=2700/22=122.7
so it will be 122 pieces
6 0
3 years ago
A banner is in the shape of a right triangle. the area is 63 inches. The height of the banner is 4 in less than twice the width
Blizzard [7]
Area=1/2 times base times height
note:bh=base times height

a=1/2bh
b=width

h=-4+2w
h=2w-4
subsitute
a=1/2w(2w-4)
a=1/2(2s^2-4w)
a=w^2-2w
a=63
63=w^2-2w
subtract 63 from both sdies
0=w^2-2w-63
factor
find what 2 numbers multiply to get -63 and add to get -2
the numbers are -9 and 7
so
0=(w-9)(w+7)
if xy=0 then x and/or y=0

so
w-9=0
w+7=0

solve each
w-9=0
add 9 to both sdies
w=9

w+7=0
subtract 7 from both sides
w=-7
width cannot be negative so this can be discarded

width=9

subsitute
l=2w-4
l=2(9)-4
l=18-4
l=14


legnth=14 in
width/base=9 in
5 0
3 years ago
Two friends are training for the marathon. Shaneese runs 100 miles per week, give or take 5 miles. Denasia runs 20 miles per wee
Svetach [21]

Answer:

give or take 5 miles.

Step-by-step explanation:

im not shor but that is true about the both of them

7 0
2 years ago
Read 2 more answers
A jet moving at constant speed traveled 6,600 km in 3 hours. What was the speed of the jet?
DanielleElmas [232]

Answer:

The speed of the jet is 2,200\frac{km}{h}

Step-by-step explanation:

The speed traveled by the jet can be found using the relationship between distance and time. Because the problem gives the values for distance and time, they must be replaced in the equation and in this way the requested speed will be found.

1. Write the general equation for the speed:

Speed=\frac{Distance}{Time}

2. Replace the values of distance and time on the general equation for the speed and make the mathematical operations:

Speed=\frac{6,600km}{3hours}

Speed=2,200\frac{km}{h}

Therefore the speed of the jet is 2,200\frac{km}{h}

3 0
3 years ago
Read 2 more answers
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