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3 years ago

-5x+12=-13 Show all of your work

Mathematics

2 answers:

WARRIOR [948]3 years ago

5 0

Answer: 5

Step-by-step explanation

-5x = -25

-5 (5) = 25

yKpoI14uk [10]3 years ago

3 0

-5x+12=-13
-5x=-25
x=5

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HELP IDK WHAT TO DOOO

juin [17]

Answer:

yes shes correct

Step-by-step explanation:

she is correct because 4 and 4 equal 8 which means each tree coat 10 each which is 80$

4 0

3 years ago

Read 2 more answers

Please help me!! Will give brainliest!!

Paraphin [41]

Answer:

A) 53

B) 53%

C) 37%

D) 63%

E) Yes.

Step-by-step explanation:

A) 53 people did not get headaches at all.

B) To solve for the percentage of participants that reported they did not get a migraine headache, you will need to divide out of the TOTAL number of people:

53/100= .53 --> Convert to percentage--> .53×100 = 53%.

C) To find this value, you will need to divide out of the amount of people that took MEDICINE and got a headache:

22/60≈0.367--> Convert to percentage --> 0.367×100≈37%

D) This percentage will be found out of who did NOT take the medicine:

25/40= 0.625 --> Convert to percentage --> 0.625×100≈63%

E) The medicine did help prevent migraine headaches because the percentage that got <u>migraines with the medicine is lower</u> than the percentage that got <u>migraines WITHOUT the medicine.</u>

3 0

4 years ago

in a game of tug of war your team changes -1 3/10 feet in position every 10 seconds. What is your change in position after 30 se

Harman [31]

Answer:

Change in position after 30 seconds will be $- \frac{26}{10}$

Step-by-step explanation:

Given:

Change on position in every 10 seconds = $-1 \frac{3}{10}$

To Find:

Change in position after 30 seconds = ?

Solution:

For every 10 seconds the team changes a distance of $-1 \frac{3}{10}$ feet

After first 10 seconds

The change in position will be $-1 \frac{3}{10}$ feet = $-\frac{13}{10}$

After next 10 seconds i.e., after 20 seconds

The change in position will be = $- \frac{13}{10}$ + $- \frac{13}{10}$

=> $- \frac{26}{10}$

After next 10 seconds i.e., after 30 seconds

The change in position will be = $- \frac{26}{10}$ + $- \frac{13}{10}$

=> $- \frac{39}{10}$

5 0

3 years ago

aniked [119]

$\huge \frak \red{question}$

The Great Pyramids of Khufu is located in El Giza, Egypt. Pyramids were built to serve as tombs for the pharaohs of ancient Egypt. The Great Pyramid is 481 feet high and has a square base with a base edge length of 756 feet. What is the approximate surface area (to the nearest hundredth) of the pyramid.

(HINT: Is the base on the surface?)

$\huge \frak \green{answer}$

Square with edge length = 756 feet

Square= 1/2 × 297.45 × 481

= 286,146.9ft

= 1,037,709,9ft. base with edge length =756 feet

area of square,

= Side² = 756 × 756 = 571,563ft²

⇒ area of base = 1/2 = 756/2 = 378ft

By pythagorean theorem,

H² = P²+B²

(481)² = P²+(378)²

P² = (481)²-(378)²

P² = 231,361-142,884

P² = 88,477

P = √88,477

P = 297.45

Area of triangle =1/2 × b × h

= 1/2x297.45*481

= 148.725×481

= 71,536.725

Now 4 area of triangle = 4×71,536.725

= 286,146.9ft

total surface area of pyramid + square

= 751,563+286,146.

= 1,037,709,9ft.

$\\ \\$

$\bold \pink{TheExtraterrestrial}$

6 0

3 years ago

The function y = x * ln(x + e) has two distinct x intercepts. One is at x = a and the other is at x = b. The value of a + b is

Snezhnost [94]

As points, x-intercepts take the form $(x,0)$ , so to find the intercepts we can set $y=0$ and solve for $x$ .

$x\ln(x+e)=0\implies\begin{cases}x=0\\\ln(x+e)=0\end{cases}$

From the first equation alone, we already know that $x=0$ is a solution, which means one intercept is $(0,0)$ .

The second equation gives

$\ln(x+e)=0\implies e^{\ln(x+e)}=e^0\implies x+e=1\implies x=1-e$

so that the second intercept occurs at $(1-e,0)$ .

So if $a=0$ and $b=1-e$ , we have $a+b=1-e$ , giving C as the answer.

3 0

3 years ago