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3 years ago

Which shows one way the equation can be represented in words?

2 answers:

7 0

I think it's five divided by eight z plus negative two point five equals two point five. If that's what you mean by saying it in words.

aliina [53]3 years ago

7 0

Answer:

Five-eighths of a number plus negative two and five-tenths is two and five-tenths

Step-by-step explanation:

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There are 5 people standing in a room. Rick is 5 times the age of Mike who is half the age of Larry. Ed is 30 years younger than

Olin [163]

Answer:

Daniel is 21 years old

Step-by-step explanation:

Let

R ---> Rick's age

M ---> Mike's age

L ---> Larry's age

E ---> Ed's age

D ---> Daniel's age

we know that

The sum of their ages is 271

$R+M+L+E+D=271$ ----> equation 1

Rick is 5 times the age of Mike

$R=5M$ ----> equation 2

Mike is half the age of Larry

$M=(1/2)L$

$L=2M$ ----> equation 3

$E=2(L+M)-30$ ----> equation 4

$D=R-79$ ----> equation 5

substitute equation 2, equation 3, equation 4 and equation 5 in equation 1

$5M+M+2M+2(L+M)-30+R-79=271$

simplify

$10M+2L+R=380$ -----> equation 6

substitute equation 2 and equation 3 in equation 6

$10M+2(2M)+5M=380$

solve for M

$19M=380\\M=20\ years$

Find the value of R (equation 2)

$R=5(20)=100\ years$

Find the value of D (equation 5)

$D=100-79=21\ years$

therefore

Daniel is 21 years old

7 0

3 years ago

I dont mnow whats going on

Gre4nikov [31]

Isn’t it the same degree as BAC

5 0

3 years ago

Read 2 more answers

A truck rental serivce charges a $20 insurance fee and $30 an hour to rent a trick. Write an equation that can be used to find c

raketka [301]

Answer:

c=30n+20 represents the cost to rent a truck for n hours.

Step-by-step explanation:

$30 dollars an hour multiplied by n.

30n

+20 for the insurance for the truck.

3 0

4 years ago

State if the two triangles are congruent. If they are, state how you know.<br> 5)

Lapatulllka [165]

Answer:

Two triangles are congruent if they meet one of the following criteria. : All three pairs of corresponding sides are equal. : Two pairs of corresponding sides and the corresponding angles between them are equal. ... and another pair of corresponding sides are equal in two right triangles.

5 0

3 years ago

The scale of a map says that 4cm represents 5km. What distance on the map in centimeters represents an actual distance of 10km

tatyana61 [14]

Answer:

8 cm

Step-by-step explanation:

We can use ratio's to solve this problem

4 cm = 5 km

We need to know how many cm = 10 km

4 cm x cm

---------- = --------------

5 km 10 km

Using cross products

4* 10 = 5* x

40 = 5x

Divide each side by 5

40/5 = 5x/5

8=x

On the map it is 8 cm.

8 0

3 years ago