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USPshnik [31]
2 years ago
9

Please help 15 points and brainlsiet for good answer please and thank u

Mathematics
1 answer:
earnstyle [38]2 years ago
4 0
Bro what I can’t even see the picture
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Lucia has 10 dimes and nickels worth a total of $0.60. Use the graph to find the number of dimes and nickels that Lucia has.
Reil [10]
The system has one solution, so it is consistent independent. The graphs intersect at the point (2, 8), which can be checked algebraically. Complete a table of values for each line.

The point (2, 8) is the solution to the system of equations. Since (2, 8) is the solution to the system of equations, Lucia has 2 dimes and 8 nickels. 

hope it helps :) feel free to ask anymore questions 

5 0
3 years ago
What is an irrational number between 7.7 and 7.9 explain why it is irrational. And include the decimal approximation of the irra
MissTica
NightowlIt can be proven that between any two real numbers there exists a rational number. Therefore there exists a rational number r such that
<span>7.7+<span>2–√</span><r<7.9+<span>2–√</span></span>By calculator we can find a rational number r that satisfies these condition, I choose 9.2. Now subtract square root 2.<span>7.7<9.2−<span>2–√</span><7.9

</span>so the answer is between 7.7 and 7.9
rational  number : 7.8
<span>irrational number :  9.2 - √2</span>
5 0
3 years ago
Read 2 more answers
(x-3y+ 3z=-4<br><br> 2x+3y-z =15<br><br> (4x-3y- z=19<br><br> - What is the solution to the system?
lesya [120]

Answer:

x=5,y=1 and z=-2

Step-by-step explanation:

We are given that system of equation

x-3y+3z=-4 (I equation)

2x+3y-z=15  (II equation )

4x-3y-z=19  (III equation )

Equation II multiply by 3 then add  with equation I

Then, we get

7x+6y=41 ....(Equation IV)

Subtract equation II from equation III then we get

2x-6y=4  (equation V)

Adding equation IV and equation V then, we get

9x=45

x=5

Substitute x=5 in equation V then, we get

2(5)-6y=4

10-6y=4

6y=10-4=6

y=1

Substitute x=5 and y=1 in equation then, we get

5-3(1)+3z=-4

2+3z=-4

3z=-4-2=-6

z=\frac{-6}{3}=-2

Hence, the solution for the given system of equation is given by

x=5,y=1 and z=-2

7 0
3 years ago
Which solution set is graphed on the number line? A number line going from negative 4 to positive 4. An open circle is at 1. Eve
lidiya [134]

Answer:

an open circle means it contains no equal signs.....everything to the left is shaded....means it is less then

x <  1 (thats a less then sign only) ....no equal sign in there

8 0
2 years ago
Read 2 more answers
Juan runs a charity run to raise money for a local animal shelter and his friend pledges $0.75 per mile that Juan runs. If Juan
givi [52]

Answer:

2.62 dollars

Step-by-step explanation:

6 0
2 years ago
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