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3 years ago

Tell whether the system has one solution, infinitely many solutions, or no solution. y=1/2x 2y-x=6

1 answer:

6 0

No solution.

2y-x=6 =y=1/2x+3
Since 1/2x does not equal 1/2x+3, this is a false statement and therefore has no solution

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Given △MON≅△PQR with MO=20 , MN=32 and PR=3x−10. Find the value of x. show your work

aliya0001 [1]

Answer:

$x=14$

Step-by-step explanation:

we know that

If two figures are congruent, then its corresponding sides and its corresponding angles are congruent

In this problem

△MON≅△PQR

corresponding sides

MO≅PQ

MN≅PR

ON≅QR

corresponding angles

∠M≅∠P

∠O≅∠Q

∠N≅∠R

therefore

MN=PR

substitute the given values

$32=3x-10$

solve for x

$3x=32+10$

$3x=42$

$x=14$

3 0

3 years ago

Evaluate the expression 5c - 2 = when c = 3 HELPPP quick

Ugo [173]

Answer:

Step-by-step explanation:

Substitute 3 into c --> 5(3)-2 = 15-2 = 13

8 0

3 years ago

Read 2 more answers

Plz help.

zvonat [6]

$x-\ the price \ of \ the \ gift \ \\ \\ 10\% \ of \ x= \frac{10}{100}*x= \frac{1}{10}*x=\frac{x}{10}- the \ discount \\ \\x^{(10} -\frac{x}{10}= \frac{10x-x}{10}= \frac{9x}{10} -the \ new \ price \ \\ \\4*9.00 \$=36 \$ -the \ price \ after \ discount \\ \\ \frac{9x}{10}=36 =>x=\frac{10*36}{9} \\ \\ \boxed{x=40 \$}$

the variant A.$40.00

5 0

2 years ago

William is reading a book for class . The book is 94 pages long . For the first assignment , William read 25 pages . For the sec

rjkz [21]

The answer is 32, I hope this helps!!

7 0

2 years ago

Qu. In a triangle ABC, side AB has length 10cm, side AC has length 5cm, and angle BAC = θ

Vinil7 [7]

Answer:

To find cosθ, use the formula for the area of a triangle i.e. AREA=1/2 x a x b x sinC.=> For this case: 15= 1/2 x 10 x 5 x sinC to find sinC.=> SinC = 3/5 thus, Arcsin(3/5)=+- 4/5 or +-0.8

To find the exact length of BC, use the cosine rule.=> c(sq)=a(sq)+b(sq)-2abCosC=> c(sq)=10(sq)+5(sq)-2(10)(5)(+-4/5)=> c(sq)= Square root of 205

6 0

3 years ago