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Mashutka [201]
3 years ago
13

What is the answer’s

Mathematics
1 answer:
NeX [460]3 years ago
6 0

1. 3(5q+9)+5q

4(5q+6)

use number 3 for q

3(5*3)+9+(5*3)

3*15+9+15

45+24

69

4(5*3)+6

4*15+6

60+6

66

the first expression represents a number greater than the second expression

69>66

2. -4(7-2m)+11m

first we do -4*7 and -7*-2

(-28+8m)+11m

8m+11m is 19m

(-28)+19m

3. -18- 1/2(50z+60)-35z

6(-12-10z+4)

12(-5z-4)

first expression:

-18 - (25z+30)-35z

-18 - -10z+30

-18+10z+30

12+10z

second expression:

6(-8-10z)

-48-60z

third expression:

-60z-48

the first expression is not equivalent to the third expression, but the second expression is

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A tree that is 4 ft tall is growing at a rate of 1 ft each year a tree that is 12 feet tall is growing at a rate of 1/2 ft each
Andreyy89

Answer:

16 years

Step-by-step explanation:

Given data

For the first tree

let the expression for the height be

y=4+x--------------1

where y= the total height

          4= the initial height

          x= the number of years

For the second tree, the expression is

y=12+0.5x-------------2

Equate 1 and 2

4+x=12+0.5x

x-0.5x=12-4

0.5x= 8

x= 8/0.5

x=16

Hence it will take 16 years for both trees to have the same height

5 0
3 years ago
What is the answer for 0.025×10=
Mashutka [201]
The answer would be 0.25... when multiplying by 10, shift the decimal place one to the right.
8 0
3 years ago
Read 2 more answers
What is the value for y?
Ivenika [448]
This triangle has 60 degrees already. Remember that the sum of all triangles have to be 180.
Since we have two y's we can simplify it as 2y + 60 = 180.

We can now set this up as an algebraic equation.

2y + 60 = 180
Subtract 60 from both sides.
2y = 120
Divide both sides by 2
y = 60.

Y = 60, your answer is D.)

I hope this helps!
5 0
3 years ago
Read 2 more answers
In one​ lottery, a player wins the jackpot by matching all five numbers drawn from white balls​ (1 through 45​) and matching the
777dan777 [17]

Answer:

39,096,288

Step-by-step explanation:

as we know that

The number of ways to pick 5 numbers from 45  are

45C_5

\frac{45\times44\times43\times42\times41}{5\times4\times3\times2\times1}|

= 1,221,759.

There are 32 ways to pick a gold ball so total number of ways to get  6 matching numbers is

1221759×32

= 39,096,288

6 0
4 years ago
How do I solve this?
Len [333]
5 Girls + 3 Boys =8 (sample size)

Probability of choosing 1 boy P(1 B) = 3/8

Probability of NOT CHOOSING ANY BOY = 1-3/8 =5/8

Now apply the binomial probability to choose 3 Boys:

8C3(3/8)³(5/8)⁵ ==>P(All boys) = 0.28
7 0
3 years ago
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