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den301095 [7]
3 years ago
14

-4-7=? I dont really understand

Mathematics
1 answer:
Anit [1.1K]3 years ago
5 0

-4 + -7= -11

When adding  negative numbers if the are both negative then you add them. When you have a negative and a positive you subtract.  In this problem they just took out the plus sign.

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PLEASEEEE HELP ITS URGENT!!!!
Marrrta [24]

Answer:

f(x)=1/2x-6

Step-by-step explanation:

7 0
3 years ago
Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will
HACTEHA [7]

Ella has to add 32.833 lbs of water to get 33.333 lbs of syrup.

<u>Solution:</u>

Ella has 0.5 lbs of sugar. Let x lbs be the amount of water Ella should add to get the 1.5% of syrup,

\Rightarrow0.5\text{ lbs }- 1.5\%

\Rightarrow x+0.5\text{ lbs }- 100\%

On writing the proportion,

\Rightarrow\dfrac{0.5}{x+0.5}=\dfrac{1.5}{100}\\ \\\Rightarrow0.5\cdot 100=(x+0.5)\cdot 1.5\\ \\\Rightarrow50=1.5x+0.75\\ \\\Rightarrow1.5x=50-0.75\\ \\\Rightarrow1.5x=49.25\\ \\\Rightarrow x=\dfrac{49.25}{1.5}\approx 32.833\ lbs

To get 1.5% syrup Ella should add 32.833 lbs of water. The total weight of syrup is 33.333 lbs.

7 0
3 years ago
Students of Jesus and Mary were divided into 6 teams for a football game. if the school comprises of 3,900 students,how many stu
gtnhenbr [62]

Answer:

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i hope this work for you

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3 0
2 years ago
Can someone solve these two for me pls ill give brainliest
NISA [10]

Answer:

1.) -5

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Step-by-step explanation:

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6 0
2 years ago
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poizon [28]

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Step-by-step explanation:

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Slope of the 1st equation is 1/3-  the slope of the line perpendicular is the opposite reciprocal, so in the case it is -3

Use the point and the new slope to write the new equation in point slope format

y-y_{1} =m(x-x_{1} )\\y-(-1)=-3(x-10)\\y+1=-3x+30\\y=-3x+29

8 0
3 years ago
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