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3 years ago

PLS HELP I'LL GIVE U BRAINLIEST

Mathematics

2 answers:

solniwko [45]3 years ago

8 0

Answer:

the answer is 7 degrees /j

MrRa [10]3 years ago

7 0

25 degrees

15-25=-10
-10+25=15

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A 3% salt solution weighing 100g represents 100g of water in which 3g of salt is dissolved (=3/10). What amount of salt would be

Nadya [2.5K]

Answer:

There would be 12 g of salt (12.3 g actually but rounded) and 88g of water (88.7 g actually but rounded)

Step-by-step explanation:

From the question, a 14% salt solution means 14g of salt in 100g of water.

What this means is that, the fraction of salt to water in the solution would be 14/100 which is same as 7/50

Now, we want to know the amount of salt and the amount of water in a 100g of 14% salt solution.

Looking at the ratio salt to water, we have 7 to 50

For every 50 parts of water, there are 7 parts of salt.

So the ratio of both is 7:50

For salt, the amount in grammes present will be ;

7/(50 + 7) * 100g = 7/57 * 100 = 12.3 g or 12g to the nearest whole number

The amount in grammes of water present will be ;

50/(50 + 7) * 100g = 50/57 * 100 = 87.7g or 88g to the nearest whole number

5 0

3 years ago

A computer that originally cost $850 is on sale for 15% Off. What is sale price of the computer? Help Please <3 Thanks!

zaharov [31]

Percent means per 100
think cent as in 100 pennies in a dollar

To convert from percent to decimal, we divide by 100 or move the decimal over 2 spots, so,
15% = 15/100 = 0.15

Now multiply 0.15 by 850 to find the discount saved
0.15*850 = 127.50
So you'll save $127.50

The final price is therefore: 850-127.50 = 722.50

A shortcut is to multiply 850 by 0.85
850*0.85 = 722.50
We get the same answer
The 0.85 comes from the fact that if you get 15% off, then you pay 85% of the original price

Answer: $722.50

6 0

3 years ago

Read 2 more answers

PLEASE HELP ASAP!!!!

Naddik [55]

Answer:4,-4

Step-by-step explanation:

Not good with graphing stuff think this id right tho

4 0

3 years ago

PLEASE ANSWER ASAP !!

trapecia [35]

Answer:

y = - 6x - 2

Step-by-step explanation:

The straight line equation is y = mx + c

First step is to bring the equation given to this form, where you make y the subject.

Now you can easily note down the gradient(m1). You will need it to find the gradient(m2) of the perpendicular line, because m1 × m2 = -1

After you have that substitute the value and the values of x and y given to find c .

Lastly, substitute the value of m2 and c into y = mx + c to find the line that is perpendicular .

Hope I was able to help:)))

7 0

3 years ago

Help please Brainly involved

scoundrel [369]

Answer:

17 is M

Step-by-step explanation:

5 0

3 years ago