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Luda [366]
2 years ago
7

Please help me it will mean a lot

Mathematics
1 answer:
Vedmedyk [2.9K]2 years ago
3 0

Answer:

A) a=25

B) b=14

Step-by-step explanation:

A) a/5+3=8

First you need to subtract 3 from both sides.

(a/5+3)-3=(8)-3

Then simplify

a/5=5

Multiply both sides by 5

(a/5)*5=(5)*5

Then simplify

a= 25

B )3b/7-1=5

First you need to add 1 to both sides

(3b/7-1)+1=(5)+1

Simplify

3b/7=6

Multiply both sides by 7

(3b/7)*7=(6)*7

Simplify

3b=42

Divide both sides by 3

(3b)/3=(42/3)/3

Simplify

b= 14

(Brainliest???) :P

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QTR is a right triangle TQR is a right triangle QS is an altitude which statements are true
mars1129 [50]

Answer:

A and C

Step-by-step explanation:

for A

QT/RT=ST/QT=QS/QR  

There are two QT's in this

so

(QT)^2 = RT * ST

FOR B

there is no RT twice

for C

QR/RT RS/QR

There is a QR twice

so QR^2=RT*RS

FOR D there is no RT twice  

(if you have the other answers for this quiz plz give them to me lol)

4 0
2 years ago
A vehicle rental company charges $35 to rent a moving van plus $.40 for each mile traveled. Which expression represents the tota
hram777 [196]

Answer:

B

Step-by-step explanation:

B is the answer

4 0
2 years ago
Read 2 more answers
A mother wants to invest ​$6000 for her​ children's education. She invests a portion of the money in a bank certificate of depos
mariarad [96]

Answer:

Money invested in CD account: $2000

Money Invested in Savings Bond: $4000

Step-by-step explanation:

Given

Total amount=$6000

Let  

x be the amount invested in CD at 4%

And

6000-x be the remaining amount invested in savings bond at 7%

So mathematically writing

0.04x+0.07(6000-x)=360

0.04x+420-0.07x=360

-0.03x+420=360

-0.03x=360-420

-0.03x= -60

x= -60/(-0.03)

x=$2000

So the amount invested in CD is $2000.

And the amount invested in savings bond is:

=6000-x

=6000-2000

=$4000  ..

8 0
2 years ago
The remains of an ancient ball court include a rectangular playing alley with a perimeter of about 18m. The length of the alley
mariarad [96]

Given:

Perimeter = 18 m

The formula for the perimeter of a rectangle is:

P=2l+2w

Where:

l = lenght

w = width

In this case, we have that:

l = 2w

Therefore, we substitute the values in the formula:

\begin{gathered} P=2l+2w \\ 18=2(2w)+2w \end{gathered}

And solve for w:

\begin{gathered} 18=4w+2w \\ 18=6w \\ \frac{18}{6}=\frac{6w}{6} \\ w=3 \end{gathered}

For the length:

l=2w=2(3)=6

Answer:

The width is 3 m

The length is 6 m

3 0
8 months ago
1. What is the product of 1/2x - 1/4 and 5x^2+6<br>show your work
zavuch27 [327]

Answer:

Step-by-step explanation:

First you would make the equation

(1/2x - 1/4)(5x^2 + 6)

afterwards you would multiply like normal binomials\

5/2x^3 + 3x - 5/4x^2 - 6/4

Then simplify

5/2x^3 - 5/4x^2 + 3x - 3/2

Remember to put them in order from the most roots to the least.

3 0
2 years ago
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