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hammer [34]
3 years ago
12

I really need help solving these two problems  

Mathematics
1 answer:
Oxana [17]3 years ago
7 0
.........................

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Maria is 19 years old. Her age is 4 more than 3 times some number, x.
musickatia [10]

Answer: x = 5

Step-by-step explanation:

We can set up an equation to solve for x:

3x  + 4 = 19

We can subtract 4 from both sides:

3x = 15

We can divide both sides by 3:

x = 5

8 0
3 years ago
Read 2 more answers
A blender was originally sold for $90 and has been marked
ale4655 [162]

Answer:

88%

Step-by-step explanation:

From the question given above, the following data were obtained:

Original amount = $ 90

Discounted amount = $ 79.20

Percentage of discount =?

Let the percentage of discount be y %

Thus, we can obtain the value of y as follow:

y /100 × 90 = 79.20

90y /100 = 79.20

Cross multiply

90y = 100 × 79.20

90y = 7920

Divide both side by 90

y = 7920/90

y = 88

Thus, the percentage discount of the blender is 88%

5 0
3 years ago
Read 2 more answers
What's the domain of this function? I typed [-4,5] but it says it's wrong!!! Please help!!!! It's due today!
Whitepunk [10]

Answer:

negative infinity to positive infinity

Step-by-step explanation:

The graph keeps going forever on both ends.

3 0
3 years ago
Read 2 more answers
In the decimal models, how many strips equal 10 small squares?
SashulF [63]
Hello,

The answer would be D, because each strip represent 10 small squares out of 100.

Hope I Helped
4 0
3 years ago
In a sale the price of a shirt is reduced from $45 to $30. Find the percentage decrease
zalisa [80]
The answer is 5% I’m pretty sure. I just subtracted $40-$30 :)
6 0
4 years ago
Read 2 more answers
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