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cestrela7 [59]
3 years ago
15

HELP PLEASE!!! THANKS!!! BRAINLIEST ANSWER OFFERED!!!!! THE SELECTED ANSWER IS MY GUESS.

Mathematics
1 answer:
melisa1 [442]3 years ago
7 0
I believe that you are correct.
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In this picture, m<4=m<5=
djverab [1.8K]

Answer:

In the picture above.

Step-by-step explanation:

Using some identities for solution

I hope that it's a clear solution.

3 0
3 years ago
Solve the following using Substitution method<br> 2x – 5y = -13<br><br> 3x + 4y = 15
Digiron [165]

\huge \boxed{\mathfrak{Question} \downarrow}

Solve the following using Substitution method

2x – 5y = -13

3x + 4y = 15

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

\left. \begin{array}  { l  }  { 2 x - 5 y = - 13 } \\ { 3 x + 4 y = 15 } \end{array} \right.

  • To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

2x-5y=-13, \: 3x+4y=15

  • Choose one of the equations and solve it for x by isolating x on the left-hand side of the equal sign. I'm choosing the 1st equation for now.

2x-5y=-13

  • Add 5y to both sides of the equation.

2x=5y-13

  • Divide both sides by 2.

x=\frac{1}{2}\left(5y-13\right)  \\

  • Multiply \frac{1}{2}\\ times 5y - 13.

x=\frac{5}{2}y-\frac{13}{2}  \\

  • Substitute \frac{5y-13}{2}\\ for x in the other equation, 3x + 4y = 15.

3\left(\frac{5}{2}y-\frac{13}{2}\right)+4y=15  \\

  • Multiply 3 times \frac{5y-13}{2}\\.

\frac{15}{2}y-\frac{39}{2}+4y=15  \\

  • Add \frac{15y}{2} \\ to 4y.

\frac{23}{2}y-\frac{39}{2}=15  \\

  • Add \frac{39}{2}\\ to both sides of the equation.

\frac{23}{2}y=\frac{69}{2}  \\

  • Divide both sides of the equation by 23/2, which is the same as multiplying both sides by the reciprocal of the fraction.

\large \underline{ \underline{ \sf \: y=3 }}

  • Substitute 3 for y in x=\frac{5}{2}y-\frac{13}{2}\\. Because the resulting equation contains only one variable, you can solve for x directly.

x=\frac{5}{2}\times 3-\frac{13}{2}  \\

  • Multiply 5/2 times 3.

x=\frac{15-13}{2}  \\

  • Add -\frac{13}{2}\\ to \frac{15}{2}\\ by finding a common denominator and adding the numerators. Then reduce the fraction to its lowest terms if possible.

\large\underline{ \underline{ \sf \: x=1 }}

  • The system is now solved. The value of x & y will be 1 & 3 respectively.

\huge\boxed{  \boxed{\bf \: x=1, \: y=3 }}

8 0
2 years ago
Last month adham 9 apples 5 bananas 4 peaches and 7 oranges.find the ratio of bananas to the total number of fruit then explain
Nady [450]

9 + 5 + 4 + 7 = 25

Ratio = 5 : 25

Ratio = 1 : 5 <==== answer

3 0
3 years ago
Complete the sentence to explain how to use mental math to express 12/25 as a percent
Vlada [557]

Answer: It's 48%. See below.

Step-by-step explanation:

By definition, percent means out of a hundred. For instance, 10 percent is 10 out of 100.

One way to make \frac{12}{25} a percent is by making the denominator 100. In order to do so, multiply the numerator and the denominator by 4, since 25 times 4 is 100.

\frac{12}{25}  =  \frac{48}{100} = 48 %

This is very simple, and mental math is definitely possible. Hope this help.  

5 0
1 year ago
P divided by 1 2/3 = 2 1/5
Vlada [557]

99888777777777777777777

4 0
3 years ago
Read 2 more answers
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