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2 years ago

Pls help, I will give brainlist!

Mathematics

1 answer:

LenKa [72]2 years ago

6 0

Answer:

Step-by-step explanation:

2.)A= $\frac{bh}{2}$

$\frac{15*10}{2}$ =75.

3.) years to month

6 years is 72 month+2 month=74 month

month to days

74 month=2250.84days.

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A number is divided by 5, then added to 18. The answer is 9 less than 62. What is the original number?

Scorpion4ik [409]

Answer: The original number is 175

Step-by-step explanation:

The number will be represent by x .

The number is being divided by 5 so we can represent by the expression x/5.

After than is being added to 18 so we will add 18 to the expression.

x/5 + 18 .

It has to equal to 9 less than 62 and 9 less than 62 is the same as the expression 62 -9.

Whole equation will be x/5 + 18 = 62 - 9

$\frac{x}{5}$ + 18 = 62 - 9 Combine like terms on the right side

x/5 + 18 = 53 Subtract 18 from both sides

-18 -18

x/5 = 35 Multiply both side by 5.

x = 175

This means the original number is 175.

4 0

3 years ago

the length of each side of the square increases by 2.5 inches to form a new square with a perimeter of 70 inches. The length of

lozanna [386]

15 inches.

2.5*4=10

70-10 equal 60

60/4=15.

3 0

3 years ago

Read 2 more answers

Anthony has a cup full of nickels and dimes worth $6.80. There are 82 coins all together.

poizon [28]

Answer:

Step-by-step explanation:

4 0

3 years ago

Which equation represents the statement: Three times the sum of a number and 5 is –30?

castortr0y [4]

Answer:

3(n+5)=-30

Step-by-step explanation:

Three times the sum of a number and 5 is - 30

Vocabulary:

times = multiplication, represented with *

sum = addition, represented by +

unknown number = n

Three * the sum of a number and 5

The sum of a number and 5 is the same as saying n + 5

So we are multiplying 3 by n + 5

Because n is an unknown variable we have to separate the sum of n and 5 from being multiplied by 3 with parenthesis. We do this because if we want to multiply 3 by the sum of n and 5. If we put 3 * n + 5 we are only multiplying the unknown variable by 3 not including the 5 that is added to it.

So we get 3( n + 5 ) is -30

3(n+5)=-30 is the answer.

3 0

2 years ago

Read 2 more answers

How much material is needed to construct a triangular tent that is 6 feet wide 4 feet tall and 8 feet long with side measurement

jonny [76]

Answer: 152ft^2

The amount of material needed to construct the tent is 152ft^2

Step-by-step explanation:

The amount of material needed to construct a triangular tent= the surface area of the triangular tent.

S.A = area of the 2 side rectangles + area of the 2 side triangles + area of the base.

S.A = Ab + At + Ar ....1

Area of the base Ab= Length × width = 8×6 = 48ft^2

Area of the two triangles At = 2 × 0.5 × width × height

At = width × height = 6×4 = 24ft^2

Area of the two rectangles Ar = 2 × side measurement × length

Side measurement is given as 5ft.

or it can be calculated using;

Side length can be calculated using Pythagoras theorem.

Examining the figure attached, we can see that;

Side breadth b = √(h^2 + (w/2)^2)

b = √(4^2 + (6/2)^2) = √(16+9) = √25

b = 5ft

Ar = 2×5×8 = 80ft^2

From eqn1, S.A can be solved as;

S.A = 48 + 24 + 80

S.A = 152ft^2

7 0

3 years ago