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Elza [17]
3 years ago
6

Who solved the problem incorrectly, and where was the first mistake made?

Mathematics
2 answers:
Andrews [41]3 years ago
8 0

Answer: B

explanation: mariah was doing it right until she multiplied 20x5. she put 10, which is wrong. it’s 100

omeli [17]3 years ago
5 0

Answer:

B

Step-by-step explanation:

20 × 30 = 600

30 × 6 = 180

5 × 6 = 30

but 20 × 5 doesn't equal 10

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Using isosceles triangle theorems solve for x and y
klio [65]
Well lets start by getting y. We already know that all angles of a triangle will equal 180 degrees.
Therefore we know that 65 + 65 + y = 180. To solve for y we just add the two 65's then subtract that from 180
y = 180-130 = 50 Therefore y = 50

Now lets solve for x. We know that since angle B is flat it is equal to 180. The unknown value of angle B = 180 - 65
Therefore that unknown value = 115

As we previously stated all angles of a triangle equal 180. We can now come up with this equation: 115 + x + x = 180
2x = 65
x = 32.5

<span>Hope this helps! If you have anymore questions just ask!</span>
8 0
4 years ago
Select the non-linear function from the list of the following:
solong [7]

Answer:

c

Step by step explanation: Linear equations don't have exponents, so that makes option c nonlinear

6 0
2 years ago
The ratio of the perimeters of two squares is 2:3. If the
liubo4ka [24]
2:3 would be the right feet.
3 0
3 years ago
One hundred teenagers are sampled at random about how much time (in hours) they spend doing homework on a given night. The resul
DerKrebs [107]

Answer:

0.43x250,000 = 107,500 teenagers.

Step-by-step explanation:

43% of students spend 1 hr on HW< and there are 25,000 students.

43% is basically just 43/100, so 0.43x250,000 is 107,500 students.

8 0
3 years ago
The line that contains the point Q( 1, -2) and is parallel to the line whose equation is y - 4 = 2/3 (x - 3)
Musya8 [376]

Answer:

y + 2 = \frac{2}{3}(x - 1)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

y - 4 = \frac{2}{3}(x - 3) ← is in point- slope form

with slope m = \frac{2}{3}

Parallel lines have equal slopes, thus equation of parallel line

with m = \frac{2}{3} and (a, b) = Q(1, - 2) is

y - (- 2) = \frac{2}{3}(x - 1) , that is

y + 2 = \frac{2}{3}(x - 1)

7 0
4 years ago
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