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3 years ago

My exam, does any one know the answer

Mathematics

2 answers:

natka813 [3]3 years ago

7 0

D.) 7 is the answer

snow_lady [41]3 years ago

6 0

Answer:

D) 7

Step-by-step explanation:

Five times a number=5x

added to 4= 5x+4

$5x+4=39$

$5x=35$

$x=7$

So, the number is 7.

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What is the constant of proportionality in the equation y=2/3x

Alexandra [31]

2/3x no y intercept

6 0

3 years ago

Read 2 more answers

Amira has 3/4 of a bag of cat food. her cat eats 3/4 lbs of a bag per week

Stels [109]

Answer:

1 week

Step-by-step explanation:

<u><em>The correct question is</em></u>

Amira has 3/4 of a bag of cat food .Her cat eats 3/4 of a bag per week . How many weeks will the food last ?

we know that

To determine how many weeks her food will last, we take the amount of food and divide by how much she feeds her cats.

3/4 bag ÷ 3/4 bag per week

$\frac{3}{4}: \frac{3}{4}$

Multiply in cross

$\frac{3*4}{4*3}=1\ week$

8 0

3 years ago

It’s about solving systems of equations...

Kamila [148]

Answer:

(-1,-1)

Step-by-step explanation:

6 0

3 years ago

Don't get this question

solniwko [45]

Answer:

17 and 18

Step-by-step explanation:

Writing every 2 digit number gives us :

10-99 including 10 and 99

For the first one we are looking for numbers where the number 3 appears only once so 33 would be invalid.

13,23,30,31,32,34,35,36,37,38,39,43,53,63,73,83,93

There are 17 2-digit numbers that have 3 exactly once

For the second one we are looking for number where the number 3 appears a minimum of once so 33 would be valid :

13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93

There are 18 2-digit numbers that have 3 at least once

Hope this helped and have a good day

5 0

2 years ago

Subtract the following equation

Ksenya-84 [330]

Answer:

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Step-by-step explanation:

8 0

3 years ago