1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleksandr-060686 [28]
4 years ago
8

Please answer quickly!!!

Mathematics
1 answer:
mixas84 [53]4 years ago
3 0

Answer:

Step-by-step explanation:

5x + 13y = 232

12x + 7y = 218

For each choice:

a) The first equation can be multiplied by –13 and the second equation by 7 to eliminate y. So we have

- 65x - 169y = - 3016

84x + 49y = 1526

Can not eliminate x and y.

b) The first equation can be multiplied by 7 and the second equation by 13 to eliminate y. So we have

35x  + 91 y = 1624

156x + 91y = 2834

Can not eliminate x and y if we ADD.

<em>(If we subtract, this is Yes)</em>

<em></em>

c) The first equation can be multiplied by –12 and the second equation by 5 to eliminate x.

-60x - 156y = - 2784

60x + 35y = 1090

The answer is YES

d) The first equation can be multiplied by 5 and the second equation by 12 to eliminate x.

25x + 65y = 1160

144x + 84y = 2616

Can not eliminate x and y

The final answer is C

You might be interested in
The PTA created a back to school backdrop and snapped polaroid pictures. The polaroid photo measures 3 inches by 4 inches. They
Ierofanga [76]
1: 4.5 ft by 6 ft
2: 27 sq. ft.



First, just multiply 3 and 4 by 1.5 to convert inches to feet using the scale. You end up with 3*1.5 and 4*1.5, which equals 4.5 and 6. So the dimensions are 4.5 feet by 6 feet.

Now, just multiply 4.5 by 6 to get 27 square feet.



Please consider marking this answer as Brainliest to help me advance.
3 0
3 years ago
Help please thanks!!!!!!!!!!
sergeinik [125]
The answer is b please be thankful
6 0
3 years ago
A rectangle has a perimeter of 30 inches.
erastova [34]
The new perimeter would be 60. because the width and the height are doubled.
8 0
3 years ago
PLEASE HELP ME ON THIS AND SHOW UR WORK<br> THX
swat32
When an exponential function is given as 
f(x)=ab^x, and
knowing that b^0=1, that means that
f(0)=ab^0=a  value of function when x=0, or the initial value.
In the case of
f(x)=20.b^x, f(0)=20.b^0 = 20  (initial value)

If b=1.2, then the hourly growth rate is (1.2-1)=0.2=20%.
If b=1.85, then the hourly growth rate is (1.85-1)=0.85=85%. 
4 0
3 years ago
If Kara's cat weighs 15 pounds and Molly's cat weighs 8 pounds, how much heavier is Kara's cat than Molly's cat? 7
marta [7]

Answer:

7 pounds

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • The graph below shows the price of different numbers of hats at a store:
    13·1 answer
  • Tenaya earned 82 points on one math test and 94 points on the next test. Elena earned 94 points on the first test and then 82 po
    13·1 answer
  • Kevin runs 8 miles in 84 minutes. At the same rate, how many minutes would he take to run 6 miles?
    8·1 answer
  • Manuel's age is 8 years less than twice Niko's age. If we let y represent Niko's age, write an algebraic expression for Manuel's
    14·1 answer
  • Help Please!<br>parallel and perpendicular lines
    7·1 answer
  • 1. If a, b, c, d, and e are whole numbers and a(b(c
    11·1 answer
  • Find f (20) for f(n) = -2n +6
    10·1 answer
  • What is the measure of one interior angle of the regular 32 gon?​
    13·1 answer
  • PLZ HELP AND CAN U PLZ EXPLAIN
    14·1 answer
  • Mallory is on a budget and wants to determine which cereal is a better buy. A 10-ounce box of Cereal A costs $2.70 and a 13-ounc
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!