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astra-53 [7]
3 years ago
10

What is the value of the expression below when w = 3? 8w - 9

Mathematics
2 answers:
bonufazy [111]3 years ago
6 0
8(3) - 9, you multiply 8 by 3 which equals 24, then you subtract 9 from 24 and end up with 15.
Vesna [10]3 years ago
4 0

Answer:23

Step-by-step explanation:

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Can someone help me with this? Thanks!
lana [24]

Answer:

b=4

Step-by-step explanation:

4b+5=1+5b (subtract 4b on both sides to get the b's together)

-4b         -4b

5=1+5b-4b (subtract 1 from both sides)

-1  -1

4=1b (divide by 1)

b=4

8 0
3 years ago
Find the volume of the composite figure. Round to the nearest tenth. The base of each pyramid is a square with a side length of
nataly862011 [7]

Answer:

75 cubic inches

Step-by-step explanation:

Given:

The base of each pyramid is a square with a side length of 5 inches

Height of of pyramid is 9 inches.

To find: volume of the pyramid

Solution:

As the base of each pyramid is a square with a side length of 5 inches,

length of the pyramid (l) = base of the pyramid (b) = 5 inches

Height of of pyramid (h) = 9 inches

Volume of the pyramid (V)=\frac{lbh}{3}

On putting values of l, b and h, we get

V=\frac{5\times 5\times 9}{3}=75 cubic inches

5 0
3 years ago
a amp has a scale of 1 inch =20 miles the distance on the map between two cities is 5 inches what is the actual distance between
arsen [322]

Answer:

124 miles

Step-by-step explanation:

simplify mixed fraction as

6 1 / 5 = 31/5 inches

on the map 1 inch represent 20 miles

31/5 × 20

= (31 × 20)/5

= 620/5

= 124 miles

the distance between those two towns will be 124 miles.

3 0
3 years ago
Given sets X, Y, Z, and U, find the set Xn(X - Y) using the listing method.
Aliun [14]

Answer:

{f, a}

Step-by-step explanation:

Given the sets:

X = {d, c, f, a}

Y = {d, e, c}

Z ={e, c, b, f, g}

U = {a, b, c, d, e, f, g}

To obtain the set X n (X - Y)

We first obtain :

(X - Y) :

The elements in X that are not in Y

(X - Y) = {f, a}

X n (X - Y) :

X = {d, c, f, a} intersection

(X - Y) = {f, a}

X n (X - Y) = elements in X and (X - Y)

X n (X - Y) = {f, a}

6 0
3 years ago
Jessica made 124 cookies. She put the cookies into three boxes, A, B and C.
Oxana [17]

There are 78 cookies in box C, 26 cookies in box B and 10 cookies in box A.

let the number of cookies in first box be represented mathematically as   B-16

the number of cookies in second box be represented as B

the number of cookies in third box be represented as 3B

Since there are 124 cookies we can make an equation  such that it becomes

B-16 +B +3B =124

Solving for B, we have

5B -16 =124

5B =124 +16

5B =130

B=130/5

B=26

Therefore Box A contains B-16 =26-16 =10 cookies

Box C contains 3B =3 X 26=78 cookies

See similar question here: brainly.com/question/23505776

7 0
2 years ago
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