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Musya8 [376]
3 years ago
8

What is the solution to the following 21+x=13​

Mathematics
1 answer:
Hitman42 [59]3 years ago
7 0

Answer:x=-8

Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8

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The area of a rectangle is 265.5 m2. If the length is 18 m, what is the perimeter of the rectangle?
julia-pushkina [17]

Answer:

65.5 m

Step-by-step explanation:

Step 1. Find the width of the rectangle.

The formula for the area of a rectangle is

A = lw

Data:

A = 265.5 m²

l =     18    m

Calculation:

265.5 = 18w

w = 265.5/18 = 14.75 m

Step 2. Calculate the perimeter

The perimeter (P) of a rectangle is the sum of the lengths of its sides.

P = 2(l + w) = 2(18 + 14.75) = 2 × 32.75 = 65.5 m

The perimeter of the rectangle is 65.5 m.

4 0
4 years ago
D = {x|x is a whole number} E = {x|x is a perfect square between 1 and 9} F = {x|x is an even number greater than or equal to 2
ser-zykov [4K]
<span>E = {x|x is a perfect square between 1 and 9} = {1,4
</span><span>F = {x|x is an even number greater than or equal to 2 and less than 9}
</span><span>D = {x|x is a whole number}
</span>
answer
D ∩ (E ∩ F) = 4
4 0
4 years ago
for every 6 girls on the softball team there are 9 boys on the baseball team if there are 50 students on both teams how many are
taurus [48]
Key info-there are nine boys for every six girls on the softball team

9/6

9(3)=27. 6(3)18

18+27=45 5 more to go

if there is 50 students on each of the teams

9(5)=45
6(8)=48

As one can see,they both cannot multiply up to 50,but they round up.
5 0
3 years ago
Read 2 more answers
Solve: 2x-3 = 5(x + 6) O A. x=33/7 A. X = 7 O B. x=-11 O C. x= -9 O D. x= -3​
love history [14]

Answer:

B -11

Step-by-step explanation:

2x-3=5x+30

or,2x-5x=30+3

or,-3x=33

x=-11

4 0
3 years ago
Name three decimals between 0.55 and 0.56
marshall27 [118]
Some decimals between 0.55 and 0.56 are 0.551, 0.552, 0.553, 0.554, 0.556, 0.557, 0.558, 0.559. 

i hope this is helpful
5 0
4 years ago
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