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deff fn [24]
3 years ago
11

3x ×?=90 somebody help me please​

Mathematics
2 answers:
Galina-37 [17]3 years ago
5 0

Answer:

30

Step-by-step explanation:

Anna007 [38]3 years ago
5 0

Answer:

Step-by-step explanation:

3x*(?)=90

?=90/3x

?=30/x

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SOMEBODY HELP ME PLEASE
Karolina [17]

The exponential model indicates that hydropower energy generation has increased by 2.3% (0.023).

<h3>What is an exponential function?</h3>

An exponential function can be defined as a type of mathematical equation whose numerals are generated by a constant that's raised to the power of an argument.

Based on an exponential model for this data, we can deduce the following:

  • Mathematically, the exponential function for the given data is given by y = 1276.6e^{0.023x}
  • The exponential model indicates that hydropower energy generation has increased by 2.3% (0.023).
  • Hydropower energy generation in 25 years after 1970 was closest to 2270 TWh.
  • Because the correlation coefficient indicates a strong correlation between the model and the data, this prediction can be accepted with confidence interval of 98.7%.

Read more on exponential functions here: brainly.com/question/12940982

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5 0
2 years ago
Takwanna saw a cookware set she liked on sale for $145 off. The original price of the cookware was $312. Find the sale price.
alex41 [277]

Step-by-step explanation:

you can't use a calculator ?

that is all that is needed.

the original price $312.

it is $145 off.

so, the actual sales price is : 312 - 145 = $167

8 0
3 years ago
Need help,please and thank you
muminat

If the two angles form a linear pair, the sum of the angles is 180 degrees.

If the small angle is one-third of the other, then the total is 1+1/3=4/3 of the larger angle.

By proportion,

L+L/3=4L/3=180

L=180*3/4=135 degrees

Smaller angle = L/3=45 degrees

Check: L+L/3=135+45=180 degrees, ok

3 0
3 years ago
Complete the sentence that explains why Write an Equation is a reasonable strategy for solving this problem. Because the answer
Margarita [4]

Answer:

4 e

Step-by-step explanation:

dz6dxrx xrrx6 xz33x4xr4x xrx

5 0
3 years ago
Devaughn's age is two times Sydney's age. The sum of their ages is <br> 66. What is Sydney's age?
mafiozo [28]
D = devaugn's age
s = sidney's age

so, we know Devaugh's age is twice as Sydneys, so d = 2*s or 2s
and we know their sum is 66
or d + s = 66

since d = 2s, thus

(2s) + s = 66   <--- solve for "s" to see Sidney's age

what about Devaugn's?   well d = 2s
8 0
3 years ago
Read 2 more answers
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