9x + 8y = -1
-7x – 8y = 15

Answers

Answer 1

Answer:

{y = 15/8 - (9 x)/8, y = -(7 x)/8 - 2}

{9 x + 8 y = 15, 7 x + 8 (y + 2) = 0}

Step-by-step explanation:


Related Questions

PLEASE HELPPPPPP URGENT

Answers

Answer:

B

Step-by-step explanation:

CD matches with ST on the shapes.

Can someone help me I’m stuck and I don’t get it

Answers

Answer:

The first one (highlighted one)

Step-by-step explanation:

The answer is the one selected. When multiplying and subtracting numbers, you do the combination that is multiplying before you subtract-unless there are numbers in parenthese. You work parentheses first. In all of the other options, you are multiplying first so not subtracting from 3. For example  the second option, you would multiply 4x7 BEFORE you subtract from 3 which doesn’t work. You are also multiplying first in options 3 and 4.

What is the surface area of the rectangle below?

Answers

Step-by-step explanation:

First, we must take into account that there will be 3 pairs of sides that are the same. Starting at the front, we have 9 * 12. Since the rectangular prism is measured in units squared, this side is 108 units squared. The opposite side is the same. Our current total is 216 units. The side is 15 * 9. This is 135 units, multiplied by 2 since it has the other side, to get 270 units. Our current total is 486 units, so it already can't be A. The top and bottom sides are 15 * 12 units, giving us 180 on each, 360 in total. 360 plus 486 = 846 units squared.

will give brainlist or whatever.
Meredith has $5.10 in quarters and dimes. She has 24 coins in all. How many quarters and how many dimes does she have?

Answers

Quarters and 1 dime

helps, my brain cannot process

Answers

Answer:

12

Step-by-step explanation:

Either 11 if you round down but 12 if you round up

Annette wants to find out which of two toothpaste brands people living in the town of Springville prefer, brand A or brand B. She uses a random sample to make this generalization: 60% of the population of Springville prefers brand A over brand B. For which random sample would this generalization be valid?

Answers

Answer:

B

Step-by-step explanation:

slove: 3/2 (x-6) = -3

Answers

The answer is x = 4

Step 1: Simplify both sides of the equation.

3 /2 (x−6)=−3

( 3 /2 )(x)+( 3 /2 )(−6)=−3(Distribute)

3 /2 x+−9=−3

3 /2 x−9=−3

Step 2: Add 9 to both sides.

3 /2 x−9+9=−3+9

3 /2 x=6

Step 3: Multiply both sides by 2/3.

( 2 /3 )*( 3 /2 x)=( 2 /3 )*(6)

x=4

Answer:

x=4

A bag contains 12 marbles that are the same shape and same size.
25% of the marbles are blue
of the marbles are red
The remainder of the marbles are orange
If one marble is selected at random from a bag, what is the probability that it will NOT be orange?

Answers

Answer:if it's 25% red, it's 50/50 that it will not be orange

Step-by-step explanation:

PLEASE ANSWER ASP

if the volume of the cylinder is 141.3 in^ 3 , what is the radius of the base of the cylinder? Use 3.14 for and enter your answer as a whole number h = 5in

Answers

Answer:

r = 3 in.

Step-by-step explanation:

vol = Bh   where B is the area of the base and h is the height of the cylinder

The base is a circle so

B = [tex]\pi r^{2}[/tex]    h = 5

141.3 = 3.14(5)[tex]r^{2}[/tex]

        = 15.7[tex]r^{2}[/tex]

[tex]r^{2}[/tex] = 141.3/15.7 = 9

r = 3 in.

Please answer the question

Answers

Answer:

$13.2

$113.20

Step-by-step explanation:

Simple interest for the fourth year = 13.20 ( 3.30 - 4)

New amount in the bank acount for 4th year = 100+ (3.30 x4) = 113.20

Hope this helps

Me.Doherty paints houses. He charges $25.00 per hour plus a flat fee of $50 for a job after painting you owe him $275. How many hours did he spend painting your house

Answers

Answer:

9 hours

Step-by-step explanation:

The total charge was $275 = $50 + ($25/hr)h

Simplifying:  $225 =  ($25/hr)h

                $225

Then h = ---------------- = 9 hours

                 ($25/hr)

Mr. D. spent 9 hours painting.

Describe exponential growth in word problem and with graph

Please help me

Answers

Answer:

y = a 2 d x + k y=a2^{dx}+k y=a2dx+k

Step-by-step explanation:

Determine the exponential function in the form y = a 2 d x + k y=a2^{dx}+k y=a2dx+k of the given graph. To solve this problem, we're going to need to find the variables "a", "d", and "k". Remember, we can find "k" from the graph, as it is the horizontal asymptote.

what does x - (-3) = 17 equal?

Answers

Answer:

x = 14

Step-by-step explanation:

two negatives become a positive so the equation is now

x + 3 = 17

subtract 3 from both sides, giving you 14

Help meee plzzzzzzzzz

Answers

Answer:

B

Step-by-step explanation:

At the numerator we have to put 8, while at the denominator we have to put 26

8/26

now we can simplify the fraction by dividing both numerator and denominator by 2

(8:2)/(26:2)

4/13

Answer:

The answer is D

Step-by-step explanation:

4/46in simplest form

Which line segment is a radius of circle F?
BE
AC
AB
BF

Answers

I think the best answer is AB

Marco mixed 2 teaspoons of sugar and 1 teaspoon of milk into his coffee. What is the ratio of teaspoons of sugar
to teaspoons of milk?

Answers

Answer:

2 : 1

Step-by-step explanation:

teaspoons of sugar : teaspoons of milk

= 2 : 1

hope this helps :)

A test has 30 multiple choice questions with 4
choices each. Which expressions represents
the total number of ways to answer the
questions?
A. 4^30
B. 30^4
C. 30 P4
D. 4•30

Answers

Answer: C

Step-by-step explanation:

The thirty choices goes in the front because that’s the total number

Tom keeps sticky notes in a box that is the shape of a cube. each side of the box is 4 inches. what is the volume of the box. HELP FIRST PERSON GETS BRAINLIEST​

Answers

Answer:

64

Step-by-step explanation:

you do 4 x 4 * 4 = 64 which means 64 in cubed

PLZZZZZZZZZZ HELP ILL GIVE BRAINLEST

Answers

It is c because I don’t know

Answer:

c)  3 grams

Step-by-step explanation:

Left side of hanger:

Total mass of circles: 6 (2 circles x 3 gram)

Total mass of squares: 10 (5 squares x 2 gram)

Total mass of triangles: 6 (2 triangles x 3 gram)

Makes a total of 22 grams

Right side of hanger:

Total mass of circles: 3 (1 circle x 3 gram)

Total mass of squares: 4 (2 squares x 2 gram)

Total mass of triangles: 15 (5 triangles x 3 gram)

Makes a total of 22 grams.

The base of the triangle is 4 inches more than the length of the sides and the total the total perimeter is 64 inches. Write an equation to find the length of each side of the triangle

Answers

Answer:

Both the sides are equal to 20 inches and the base is equal to 24 inches.

b=s3= s1+4----equation 1

s1=s2----equation 2

Perimeter of the triangle = s1+s2+s3--------equation 3

Step-by-step explanation:

Let the sides be denoted by s1 and s2 . Then the base is denoted by b=s3= s1+4----equation 1

According to the statement s1=s2----equation 2

Perimeter of the triangle = s1+s2+s3--------equation 3

   64= s1+s2+ s1+4

 64 = 3s1+4

60= 3s1

20 = s1

Both the sides are equal to 20 inches and the base is equal to 24 inches.

Which of the following statements are true about the graph of f(x) = -2tan(3x - 6) + 1? Select all that apply.

Answers

A. isn't correct because functions are by their definition different.

B is true. Domain of both is x>0 and range is 1/2 as large. because of 1/2 factor in first function

C is true . because of -2 it is shifted to the right by 2 and it is shrunk vertically by 1/2

D isn't true because ranges are not the same.

Answer: 1. A. B, C

2. A

3. A

Step-by-step explanation: I just finished the practice

Find the lateral and surface area of a cone with an altitude of 5 and a slant height of 91/2 feet

Answers

Answer:

sry i cant i to dubm need points tho

Step-by-step explanation:

I’ve been stuck on these questions for THE LONGEST TIME...Can someone help?

Answers

Q1: Terry’s map=1/500 of true size
Multiply inches by 500 to calculate with scale factor:
6*500=3,000
12 inches=1 foot
3,000/12=250 Feet (Option A)

Q2: 12 in=1 Foot
30 feet* 12 inches=360 inches
Divide by 360 inches by 36 inches:
360/36=10 parts (Option A)

One game had an attendance of 25,000 visitors. Based on the table, how many people out of 25,000 could be expected to buy a flag?

A.
1,375

B.
1,650

C.
3,850

D.
2,750

Answers

The answer is D i’m sure

The number of people who could be expected to buy a flag using the expression (22/200) x 25,000 is 2,750.

Option D is the correct answer.

We have,

Based on the table,

The number of people who could be expected to buy a flag out of 25,000 visitors is:

(22/total items sold) x 25,000

To find the total items sold, you can add up the number of caps, jerseys, flags, and programs:

Total items sold.

= 68 + 19 + 22 + 91

= 200

The number of people who could be expected to buy a flag is:

(22/200) x 25,000 = 2,750

Thus,

The number of people who could be expected to buy a flag is 2,750.

Learn more about expressions here:

https://brainly.com/question/17121675

#SPJ2

The complete table is given below:

Item          Number of people

Cap           68

Jersey       19

Flag           22

Program    91

4. if m<AOB = 45° in circle O, what is m<ABC​

Answers

Answer:

Answer:

m<ACB=22.5° [as inscribed angle is half to the central angle]

Answer:

m<ABC=22.5°

hope it helps

Please help with real answer :-(

Answers

Answer:

B

Step-by-step explanation:

subtract the function of h by the real number and write it in form of inequality

hi please help i’ll give brainliest

Answers

b) new moon

i’m not sure the explanation but i learned ab this before

Answer:

A solar eclipse is possible during a new moon.

Find the indicated sides to the nearest thousandths and angles to the nearest degreeSin 62=x/53

Answers

Answer:

3,000

Step-by-step explanation:

62x53 = 3,286 rounded nearest thousand = 3,000

I didn't exactly get your answer dude, sorry if wrong. I forgot how to round degrees.

which choice is equivalent to 6.25% ?

a) 6.25

b) .625

c) 0.0625

d) 0.00625​

Answers

.625 to find the decimal of a percentage divide by 100

Tickets to the fair costs $5 and each ride costs $0.75. If Jacob wants to spend no more than
$18 at the fair, how many rides can he ride?

Answers

Answer:He can ride 17 rides

Step-by-step explanation:

18-5= 13

13 / 0.75 =17.333333333

You have to round down which would give you 17

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