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2 years ago

What is ?/? + 2/7 =1

Mathematics

2 answers:

lapo4ka [179]2 years ago

8 0

Answer:

5/7

Step-by-step explanation:

$x + \frac{2}{7} = 1 \\ \\ x = 1 - \frac{2}{7} \\ \\ x = \frac{7}{7} - \frac{2}{7} \\ \\ x = \frac{5}{7}$

Bess [88]2 years ago

6 0

5/7

If you add the numerators in each, they should be the same as the denominator. 5+2=7

So 7/7=1

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Jimmy purchased 15 tickets to a concert and spent $140. He purchased some children's tickets and some adult tickets. The childre

fiasKO [112]

Answer:

Jimmy purchased 8 of the children's ticket and 7 of the adult's ticket.

Step-by-step explanation:

Let c = children tickets

Let a = adult tickets

Given the following data;

Number of tickets = 15

Total amount spent = $140

Cost of each children ticket = $7

Cost of each adult ticket = $12

*Translating the word problem into an algebraic equation (system)*

For the total number of tickets;

$c + a = 15$ .........equation 1

For the total amount spent;

$7c + 12a = 140$ ..........equation 2

*Solving the linear equation by using the substitution method*

Making c the subject in equation 1:

$c = 15 - a$ .......equation 3

Substituting "c" into equation 2;

$7(15 - a) + 12a = 140$

Simplifying the equation, we have;

$105 - 7a +12a = 140$

$105 + 5a = 140$

Rearranging the equation, we have;

$5a = 140 - 105$

$5a = 35$

$a = \frac {35}{5}$

a = 5 (For the $12 adult ticket).

To find the number of children tickets;

Substituting "a" into equation 3;

$c = 15 - 7$

c = 8 (For the $7 children ticket).

4 0

2 years ago

What is the ratio of 36 dimes and 40 coins?

Lena [83]

Answer:

9:10

Step-by-step explanation:

Find GCF then divide

3 0

3 years ago

PLEASE HELP

photoshop1234 [79]

Parameters of functions are the independent variable(s). e.x. y = 2x /\ x is the independent variable (the parameter).

6 0

3 years ago

HELP!

Alexxx [7]

Answer:

LIMIT

The policy will pay for up to

$100,000 of damage to

another person's property.

The policy will pay only

$100 per incident for a

tow truck

DEDUCTIBLE

The policyholder must pay

the first $1,000 of repair

expenses before insurance

will pay for anything,

PREMIUM

The policy offers coverage

for a cost of $178 per month

The policyholder must

pay $500 semiannually

to the insurance provider

Step-by-step explanation:

LIMIT is the maximum amount an insurer will pay toward a covered claim

DEDUCTIBLE is the amount paid out of pocket toward a covered claim

PREMIUM is the amount paid regularly to keep the policy in force.

6 0

2 years ago

Please help me with the problem

mixas84 [53]

Let's see what we're working on here

$\frac{1}{2} - 2(m) =?$
? = 0
$Simplify this →$ $\frac{1}{2}$

$\frac{1}2y} - 2(m) = ?$

$\frac{2(m)(2)}{2}$

$\frac{1 - 4(m)}{2} = ?$

$\frac{1 - 4(m)}{2} = 2$

$-4(m) + 1 = 0$
Subtract ( - )the number 1 from each of your sides on this part

4(m) = 1
Multiply( ×) the number -1 to your sides for this part of the equation

Therefore, the value of m is $\frac{1}{4}$
$m = \frac{1}{4}$

3 0

3 years ago

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