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2 years ago

How do I get the answer for 1-(-7)=

Mathematics

2 answers:

Aloiza [94]2 years ago

3 0

Answer:

Step-by-step explanation:

When you have two negative signs next to each other, they turn into an addition sign. So, 1-(-7) = 1+7 = 8.

Hope this helps and please mark this as brainliest!

goldenfox [79]2 years ago

3 0

Answer: 8

Step-by-step explanation:

First, take the equation

1-(-7)

Now due to the fact that a subtraction sign is next a negative sign, they cancel each other out

The equation will now be

1+7

which will equal

8

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Write an equation in slope-intercept form for this line.

sineoko [7]

Answer:

y = $\frac{3}{2}$ x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = $\frac{3}{2}$ , then

y = $\frac{3}{2}$ x + c ← is the partial equation

To find c substitute (- 4, - 7 ) into the partial equation

- 7 = - 6 + c ⇒ c = - 7 + 6 = - 1

y = $\frac{3}{2}$ x - 1 ← equation of line

7 0

2 years ago

ANSWER ASAP: New machine has productivity (measured in the number of produced details) 12% greater than the last model. After re

GREYUIT [131]

The total number of produced details increased by 6.4%

suppose the starting number was x.
suppose x=100
100 +12%= 112
112-5%=106.4
106.4-100=6.4
6.4%

4 0

3 years ago

Read 2 more answers

What is the slope of a line y=7.8x+62

dexar [7]

Answer:

m = 7.8

Step-by-step explanation:

Its the slope. Its the number next to the x.

3 0

2 years ago

7/10 times y minus 3/10 when y equals 1/7

Oduvanchick [21]

Answer:

Exact form : - 1/5

Decimal form : -0.2

Step-by-step explanation: Substitute the value of the variable into the equation and then simplify.

Hope this helps you out. If not, comment and let me know. Good luck, mate! ☺

-Leif the Insane Puppy Loving Weirdo-

3 0

3 years ago

On a farm there are three-legged-cows and chickens. There are total of 127 heads and 353 legs. How many three-legged-cows are on

olga nikolaevna [1]

Answer: There are 99 three-legged-cows and 28 chickens.

Step-by-step explanation:

Let x be the number of three-legged-cows and y be the number of chickens.

Number of legs in chicken = 2

The according to the question, we have the following equations :-

$\text{For heads }x+y=127------(1)\\\\\text{For legs }3x+2y=353------(2)$

Multiplying 2 to the equation (1), we get

$2x+2y=254--------(3)$

Now, subtract equation (3) from (2), we get

$x=353-254=99$

Put x= 99 in (1), we get

$99+y=127\\\\\Rightarrow\ y=127-99=28$

Hence, there are 99 three-legged-cows and 28 chickens.

6 0

2 years ago