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
Snowcat [4.5K]
4 years ago
11

Maria wants to solve the following system using the elimination method: 4x+9y=59 and x+y=17What number should the equation x+y=1

7 be multiplied by to eliminate y
Mathematics
1 answer:
horrorfan [7]4 years ago
5 0
\left\{\begin{array}{ccc}4x+9y=59\\x+y=17&|multiply\ both\ sides\ by\ (-9)\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}4x+9y=59\\-9x-9y=-153\end{array}\right}\\.\ \ \ -5x=-94
You might be interested in
Please help me with this :))
Hitman42 [59]

Hey love! <3

Answer:

Your answer is 306 units^2!

Step-by-step explanation:

<em>Let's work this out together!</em>

<em>First let's find the top and bottom square's area.</em>

<em>6 x 15 = 90</em>

<em>Since there are not only two of those shapes but THREE, 90 x 3= 270.</em>

<em>So 270 is the surface area of the middle rectangles.</em>

<em />

<em>Step 2! Let's find the area of these triangles. We know that both of the triangles are 6 on each side.</em>

<em>Think back to geometry formulas. The formula for finding the area of a triangle is different then a square.</em>

<em>Triangle formula: Base x Height / 2 = A</em>

<em>Rectangle formula: Base x Height = A</em>

<em>So 6 x 6 is 36, now we have to divide it by two; which equals 18.</em>

<em>Since there are TWO triangles, we multiply 18 by two giving us the total surface area of the triangles, 36.</em>

<em />

<em>Now let's add our products together!</em>

<em>36 + 270 = 306</em>

<em>Thus the total surface area being </em><em>306 units^2</em>

<em />

<em>Hope this powers up that very-brainly brain of yours! Be sure to drop Brainliest (Only if you want to! No pressure) ( ಠ◡ಠ ) Sincerely, Kelsey from Brainly.</em>

<em />

<em>~ #LearnWithBrainly ~</em>

7 0
3 years ago
Which pair of numbers are opposite integers?
Bezzdna [24]

Answer: (-4) and 4

Step-by-step explanation: they are opposites

7 0
3 years ago
Read 2 more answers
HELP! 15 POINTS!
jeka94
For question number 1, the correct answer would be the x coordinate would be the same, or will not change.

For question number 2, the correct answer would be (-4,-7)

For question number 3, the correct answer would be <span>A'(5, -3), B'(2, -1), C'(-2, -4)

For question number 4, the correct answer would be </span><span>R'(-3, 2), S'(-5, -2), T'(-6, 0)

If you have any questions, just ask. ;)</span>
5 0
3 years ago
Read 2 more answers
3 1 ) How do -1- and -1- compare? Choose a symbol to make the statement true. 4 4 3 -1- ? 1 4 4​
lukranit [14]

Answer:

4 or-1- i dont know

Step-by-step explanation:

5 0
3 years ago
The equation of line j is y= negative x + 3/8 line k which is perpendicular to line j, includes the point (negative 2, 7) what i
photoshop1234 [79]
Line j is negative and line k is postive so you combine hem in like terms to solve them

4 0
3 years ago
Other questions:
  • Evan has a summer job to pick berries on the farm here earn $2 every 15 minutes that he picks strawberries he earn $2.40 every 1
    11·2 answers
  • What's 1/3 times 31 equal
    8·1 answer
  • 6 - 6x = 4x - 44<br> What’s the answer
    13·2 answers
  • In the data table shown, if x = 20, then y=
    5·2 answers
  • Solve the equation 3x-4y=16 for x
    11·2 answers
  • Two standard number cubes are tossed.
    6·2 answers
  • Copper costs £5 per kilogram.
    10·1 answer
  • What single decimal multiplier would you use to decrease by 3% followed by a 4% increase?​
    7·2 answers
  • eliza is making seed bead necklace. For every 2 pink beads, she uses 7 black beeds. if the necklace has 112 black beads, how man
    12·1 answer
  • Sara paid $25 for a jacket, which was 10% of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!