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3 years ago

HELP PLEASE FAST!! ILL GIVE 5 STARS :))))

2 answers:

6 0

Hi there!

Generally, any form is fine, since you always get the same solutions (if you're doing it correctly), but usually, if you encounter something like y = 3x + 2 when the value of y is already given to you, you can just plug the value of y into the other equation and use substitution, but other than that, if the question allows, you should use elimination.

Hope this helps!

VMariaS [17]3 years ago

4 0

Use substitution when either and x or y is given, for instance: x = 2y + 3 or y = 8x - 9.

Use elimination when a number from both equations can cancel each other out, for example:
2x + 3y = 19
-2x + 7y = 12

Hope this helps!

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Sarah said that 0.00001 is bigger than 0.001 because the first number has more digits to the right of the decimal point. Is Sara

stepan [7]

Sarah would be incorrect, because the more numbers after the decimal, the smaller the number would be, because it is further away from the number one.

6 0

4 years ago

85% of what number equals 17

IrinaK [193]

Percent means parts out of 100
85%=85/100=0.85
'of' means multiply

therefor
85% of x equals 17 means
0.85 times x=17
divide both sides by 0.85
x=20

the number is 20

8 0

4 years ago

PLEASE HELP 99 POINTS

statuscvo [17]

Presumably, $h(x)=3(5)^x$ . In that case,

(A)
The average rate of change over the interval $0\le x\le1$ is

$\dfrac{h(1)-h(0)}{1-0}=\dfrac{15-3}1=12$

and over $2\le x\le3$ , it's

$\dfrac{h(3)-h(2)}{3-2}=\dfrac{375-75}1=300$

(B)
$\dfrac{300}{12}=25$ , i.e. the average rate of change over the second interval is 25 times higher. That's to be expected; $3(5)^x$ is an exponential function. As $x$ gets larger, the rate of change of $h(x)$ gets larger too.

7 0

3 years ago

Please help with E!!

Andrej [43]

Answer:

x=15.6

Step-by-step explanation:

180-109=71

71+7=78

78/5=15.6

8 0

3 years ago

In university A, the number of graduate students was approximately 25 comma 000 fewer than the number of undergraduate students

alekssr [168]

Answer:

The number of graduate students attend university A is $G=n-25,000$

Step-by-step explanation:

Consider the provided information.

We need to determine how many graduate students attend university A?

The number of undergraduate students was n.

The number of graduate students was approximately 25,000 fewer than the number of undergraduate students.

Let G represents the number of graduate student.

$G=n-25,000$

Hence, the number of graduate students attend university A is $G=n-25,000$

4 0

3 years ago