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Vladimir [108]
3 years ago
7

PLEASE HELP ME!!!!

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0

Answer:

Step-by-step explanation:

MARK BRAINLIEST PLEASE ☺️☺️

First you multiply 20 by .15 and you get 3. Subtract 3 by 20 and you get 17. Now multiply $17 by 30 and you get 510. She spent $510 on 30 calculators

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Answer:

  SAS Postulate

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3 years ago
Triangles QPT and QRS are similar. Find x.
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Answer:

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Pleaseeeee help me. i really need it.
deff fn [24]

comparing the relation given

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where y= mx + c

where m is the gradient and c is the intercept on the y-axis.

from the question, the gradient is -2 and since the line is perpendicular, the gradient is given as

\frac{ - 1}{m}

so substituting the value of m in to the equation

\frac{ - 1}{ - 2}

=

\frac{1}{2}

as the gradient

equation of line is given by

y - y1 = m( x-x1)

from the question y1= -2 and x1=1

substitute them

y-(-2) = 1/2 (x -1)

y+2 =1/2 (x-1)

multiplying through by 2

2 (y+2) = x-1

2y +4 = x-1

2y =x-1-4

2y =x-5

x -2y -5 = 0

therefore the equation for the line is x-2y -5=0

7 0
3 years ago
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Step-by-step explanation:

Quesion 1

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= 330/6

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hence in two bags there will be 55*2= 110 walnuts

Question 3

Option D is an example of a unit rate.

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Is 0.4 bigger than 0.25
sattari [20]

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Step-by-step explanation: Think of it as money. Whats bigger? $0.40 or $0.25? 0.4 is bigger.


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