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marishachu [46]
2 years ago
10

NEEED HELPPPP TRYING NOT TO FAIL MATHH !!

Mathematics
1 answer:
Oliga [24]2 years ago
3 0
The answer is C hope it helped
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Solve 2x + 5y = 20; 3x - 10y = 37 by elimination. How do you do this? Thank-you!
mr Goodwill [35]

\left\{\begin{array}{ccc}2x+5y=20&\text{multiply both sides by 2}\\3x-10y=37\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}4x+10y=40\\3x-10y=37\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad7x=77\qquad\text{divide both sides by 7}\\.\qquad\boxed{x=11}\\\\\text{Put the value of x to the first equation:}\\\\2(11)+5y=20\\\\22+5y=20\qquad\text{subtract 22 from both sides}\\\\5y=-2\qquad\text{divide both sides by 5}\\\\\boxed{y=-\dfrac{2}{5}}\\\\Answer:\ \boxed{x=11\ and\ y=-\dfrac{2}{5}}

6 0
3 years ago
BRAINLIEST TO THE FIRST PERSON TO ANSWER!!The expression on the left side of an equation is shown below.
dusya [7]

Answer:

123added 23

Step-by-step explanation:

4 0
4 years ago
Please help. Urgent.
Jet001 [13]

3. ΔPQR ≅ ΔSRT

3. ASA  (Angle - Side - Angle) - we have two triangles where we know two angles and the included side are equal

If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.

4. PR ≅ SR

4. ΔPQR ≅ ΔSRT - the corresponding sides are congruent.

7 0
4 years ago
Help please! answer correctly for brainliest . ( look at picture for question and answer choices )
lubasha [3.4K]

Answer:

Non-linear and decreasing so B

Step-by-step explanation:

It is non-linear as it is not a straight line

It's also going down so its decreasing

4 0
3 years ago
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Raul is making a scale model of an airplane that has a wingspan of 44 feet. If Rauls scale model is 1/16 the size of the actual
KATRIN_1 [288]
You would divide 44 by 16 so the wing span is 2.75 ft.
5 0
3 years ago
Read 2 more answers
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