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3 years ago

P and Q each stand for whole numbers. P + Q = 1000 P is 150 greater than Q. Calculate the numbers P and Q ?

1 answer:

8 0

P+Q=1000
Q+150=P
Plug (Q+150) for P.
(Q+150)+Q=1000
2Q=850
Divide both sides by 2.
Q=425
Now use 425 to find P.
425+P=1000
Subtract 425 from both sides.
P=575

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disa [49]

Answer:

1)x=6

Step-by-step explanation:

step 1: add 2x to both sides.

x−15+2x=−2x+3+2x

3x−15=3

step 2: add 15 to both sides.

3x−15+15=3+15

3x=18

step 3: divide both sides by 3.

3x/3=18/3

x=6

answer:

x=6

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6 0

3 years ago

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Solving by elimination<br>4x-y=-4<br>5x=2y+1

Semenov [28]

Answer:

x=-3, y=-8

Step-by-step explanation:

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3 years ago

El solar de María tiene forma rectangular los lados miden 36 cm y 40 cm cuántos metros cuadrados tiene el terreno? cuál es el pe

Taya2010 [7]

Answer:

Area of rectangular land = 1,440 cm².

Perimeter of rectangular land = 152 cm

Step-by-step explanation:

Given:

Length of rectangular land = 36 cm

Width of rectangular land = 40 cm

Find:

Area of rectangular land

Perimeter of rectangular land

Computation:

Area of rectangle = length x width

Area of rectangular land = 36 x 40

Area of rectangular land = 1,440 cm²

Perimeter of rectangle = 2[l + b]

Perimeter of rectangular land = 2[36 + 40]

Perimeter of rectangular land = 2[76]

Perimeter of rectangular land = 152 cm

4 0

3 years ago

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be

Masja [62]

Answer:

Mean of the population having 6"-9" Hatching =38

Standard Deviation =4

Step-by-step explanation:

Confidence interval of 95% means that 95% of data lie within two standard deviations.

That is data values lie between 38-2×4 to 38 +2×4.

⇒Which is 38-8 to 38+8.

⇒30 to 46.

it is also given that margin of error is 2.5%.

So, the data value will lie between

Mean of beginning value to extreme value of 95% confidence level

So, Sample mean of this observation having 2.5% margin of error = 38

Option D:→ 38

5 0

3 years ago

Which congruency theorem can be used to prove<br> that ABD =DCA?

Dimas [21]

Answer:

The answer is "SAS".

Step-by-step explanation:

In this question we assume two angle is given that are:

$\ Two \ triangles \angle ABD \ and \angleDCA \\\\\ In \ this \ on \ angle \ is \ common \ that \ is, \\\\ AD=AD \\\\AB= CD \\\\\angle A \ is \ equal \ = \angle A \ (\ which \ is \ given)\\\\$

That's why SAS rule is correct.

6 0

3 years ago