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3 years ago

IN A RECTANGLE PQRS , PR = 25 AND THE AREA IS 168. WHAT IS THE MEASURE OF PQ?

Mathematics

1 answer:

Novay_Z [31]3 years ago

3 0

Answer:

the answer is 143

Step-by-step explanation:

just do 168 - 25 equals 143 , I'm sorry if I got this wrong I'm going based off what my 10th grade math teacher are taught me

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What dose this equal 2(6x-4)=3(6x+2)

AveGali [126]

Answer:

-7/3

Step-by-step explanation:

2(6−4)=3(6+2)

2(6x-4)=3(6x+2)

Solve

Distribute

2(6−4)=3(6+2)

{\color{#c92786}{2(6x-4)}}=3(6x+2)

12−8=3(6+2)

{\color{#c92786}{12x-8}}=3(6x+2)

Distribute

12−8=3(6+2)

12x-8={\color{#c92786}{3(6x+2)}}

12−8=18+6

12x-8={\color{#c92786}{18x+6}}

Add

to both sides of the equation

12−8=18+6

12x-8=18x+6

12−8+8=18+6+8

12x-8+{\color{#c92786}{8}}=18x+6+{\color{#c92786}{8}}

5 more steps

Solution

=−7/3

7 0

2 years ago

Read 2 more answers

Me encontré $100, luego mi papá medio $80, pero yo le di a mi mamá $70 cuánto me queda

Juliette [100K]

Answer:

te queda $110

Step-by-step explanation:

espero que te sirva

8 0

2 years ago

There are 3/4 as many boys as girls in a class of fifth graders. If there are 35 students in the class, how many are girls?

OLEGan [10]

Answer:

20 There are 15 boys and 20 girls.

4 0

3 years ago

Question 3 (1 point) Co-60 has a half life of 5.3 years. If a pellet that has been in storage for 26.5 years contains 14.5g of C

Zarrin [17]

Answer:

464 grams.

Step-by-step explanation:

Amount of substance:

The amount of substance after t years is given by an equation in the following format:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial amount and r is the decay rate, as a decimal.

Co-60 has a half life of 5.3 years.

This means that:

$A(5.3) = 0.5A(0)$

We use this to find r. So

$A(t) = A(0)(1-r)^t$

$0.5A(0) = A(0)(1-r)^{5.3}$

$(1-r)^{5.3} = 0.5$

$\sqrt[5.3]{(1-r)^{5.3}} = \sqrt[5.3]{0.5}$

$1 - r = 0.5^{\frac{1}{5.3}}$

$1 - r = 0.8774$

$A(t) = A(0)(0.8774)^{t}$

If a pellet that has been in storage for 26.5 years contains 14.5g of Co-60, how much of this radioisotope was present when the pellet was put in storage?

We have that $A(26.5) = 14.5$ , and use this to find A(0). So

$A(t) = A(0)(0.8774)^{t}$

$14.5 = A(0)(0.8774)^{26.5}$

$A(0) = \frac{14.5}{(0.8774)^{26.5}}$

[tex]A(0) = 464[tex]

464 grams.

3 0

3 years ago

Which shows 4/5 written as a division expression?

IrinaK [193]

Answer:

B. 4 ÷ 5

Step-by-step explanation:

4/5 means you are dividing 4 by 5. So the answer would be B.

4 0

3 years ago

Read 2 more answers