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Ede4ka [16]
2 years ago
7

Pls help!!! I will give first good answer brainliest!!

Mathematics
2 answers:
Nikitich [7]2 years ago
7 0
5: length is 8

6. X is 34
PilotLPTM [1.2K]2 years ago
7 0

Answer:

EH = 6.7 and x = 40

Step-by-step explanation:

\frac{eh}{5}  =  \frac{12}{9}

eh =  \frac{12 \times 5}{9}

eh = 6.7

\frac{x}{25}  =  \frac{24}{15}

x =  \frac{25 \times 24}{15}

x = 40

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A graduated cylinder containing 40 mL of water has a total mass of 60 g. A solid object carefully lowered into the graduated cyl
Kruka [31]
I need someone to help me with frech do u know frech
4 0
2 years ago
If you add​ Natalie's age and​ Fred's age, the result is 39. If you add​ Fred's age to 4 times​ Natalie's age, the result is 78.
Darina [25.2K]

Step-by-step explanation:

We can write this word problem as two variables. Let us assume that:

x = Natalie's age

y = Fred's age

The first part of the word problem is that "If you add​ Natalie's age and​ Fred's age, the result is 39." Therefore:

Natalie's age + Fred's age = 39

x + y = 39

This will be our first equation. The second equation can be derived from the statement that "If you add​ Fred's age to 4 times​ Natalie's age, the result is 78." Therefore:

(4 times Natalie's age) + Fred's age = 78

4x + y = 78

We can now form a system of equations and solve for both x and y:

\left \{ {{x + y = 39} \atop {4x + y = 78}} \right.

The simplest way to solve would be using the Substitution method, as seen here:

x + y = 39

y = 39 - x

4x + y = 78

4x + (39 - x) = 78

3x + 39 = 78

3x = 39

x = 13

x + y = 39

13 + y = 39

y = 26

Remember that x = Natalie's age and y = Fred's age. Therefore, Natalie's age is 13 years old and Fred's age is 26 years old.

8 0
2 years ago
A ship travels 200 miles due west, then adjusts its course 30° north of west. The ship continues on this course for 30 miles. Ap
earnstyle [38]

Answer:

The answers D on Edg

Step-by-step explanation:

Just finished the test

5 0
3 years ago
Six machines, each working at the same constant rate, together can complete a certain job in 12 days. How many additional machin
aev [14]

Answer:

The answer to your question is letter C

Step-by-step explanation:

This is a problem with the inverse rule of three because we expect that more machines can complete the same work in fewer days.

                              6 machines ------------------  12 days

                              x machines -------------------  8 days

               x machines = \frac{(8 days)(6 machines)}{12 days}

                            x machines = \frac{48 machines}{12}

                                   x = 4 machines

3 0
2 years ago
22)
ludmilkaskok [199]
The answer is B

the cost of each doll (2.5) times the number of dolls (x) equals the total amount she has to spend (45)
5 0
2 years ago
Read 2 more answers
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