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Kamila [148]
3 years ago
10

Sum of 15,-2 and 7 is​

Mathematics
2 answers:
Sedbober [7]3 years ago
8 0

Answer:

20

Step-by-step explanation:

15+(-2)+7=13+7=20

Julli [10]3 years ago
3 0

\longrightarrow{\blue{20}} 

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

\:15 + ( - 2) + 7

➺ \: 15 - 2 + 7

➺ \: 22 - 2

➺ \: 20

<h3><u>Note</u>:-</h3>

\sf\pink{PEMDAS\: rule.}

P = Parentheses

E = Exponents

M = Multiplication

D = Division

A = Addition

S = Subtraction

\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}

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Need help with this math​
IgorLugansk [536]
<h2>Answer: 6 gallons </h2>

First we are told that we initially had 1/3 of the tank and when 10 gallons were added we had 3/4 of the tank:

\frac{1}{3}+10gallons=\frac{3}{4}    (1)

10gallons=\frac{3}{4}-\frac{1}{3}   (2)

1gallon=\frac{1}{24}    (3)

This means 1 gallon is equivalent to 1/24 tank.

On the other hand if we have 3/4 of a tank and need to reach 1 tank we have to add another fraction of the tank:

\frac{3}{4}+X=1   (4)

X=\frac{1}{4}   (5)>>>>This is the fraction needed to complete 1 tank

Now we need to know <u>how much that 1/4 tank is equivalent in gallons</u>.

From (3) we know 1gallon=\frac{1}{24} . So, we can write the following relation to transform from fractions of a tank to gallons:

\frac{1}{4}.\frac{1gallon}{\frac{1}{24}}=(\frac{1gallon}{4})(\frac{24}{1})

\frac{24}{4}gallons=6gallons

Therefore:

<h2>6 more gallons are needed to fill the tank</h2>
8 0
4 years ago
If you only have a 1/4 cup measuring cup and a recipe calls for 2 3/4 cups of flour, how many 1/4 cups would you need to use?
Kruka [31]

Answer:

<h2>ANSWER FAILURE</h2><h2>ANSWER FAILURE</h2>

M

#CarryOnLearning.

7 0
3 years ago
The sum of the ages of Caleb and Linda is 55 years. 8 years ago, Caleb's age was 2 times Linda's age. How old is Caleb now?
yKpoI14uk [10]

Answer:

34

Step-by-step explanation:

1. if to guess the Caleb's age is 'x' years and Linda's age is 'y' years now, then

2. according to the 'sum of the ages of Caleb and Linda is 55 years' it may be written: x+y=55 - the first equation of the system;

3. according  to the condition '8 years ago, Caleb's age was 2 times Linda's age' it may be written: (x-8)(y-8)=2 - the second equation of the system;

4. if to make up the system of two equation and calculate the values of 'x' and 'y':

5. if x=34, then Caleb is 34 old now.

4 0
4 years ago
1. Given the functions a(x) = 3x − 12 and b(x) = x − 9, solve a[b(x)] and select the correct answer below.
Olegator [25]
I think the answer is A: a[b(x)] = 3x2-21 because if you make this whole expression into an equation then solve x, you will get answer A. Hope this helps! :)
8 0
3 years ago
I will mark you brainalist
My name is Ann [436]

Answer:D

Step-by-step explanation:Every point matches

7 0
3 years ago
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