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Shtirlitz [24]
3 years ago
7

You have a total of 21 coins, all nickles and dimes. The total value is $1.70 Which of the following is the system of linear equ

ations that represent this scenario? Let n= the number of nickles and let d= the number of dimes.
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
7 0
You need one equation for the physical nickels and dimes, which total to 21:

n+d=21

Secondly, you need one equation for the numerical value of those nickels and dimes. We know nickels are worth $0.05 and dime are worth $0.10:

.05n+.1d=1.70
You might be interested in
Given: -6x < 36. Choose the solution set. {x | x < -6} {x | x > 6} {x | x > -6} {x | x < 6}.
grin007 [14]

The correct answer is this inequality {x | x > -6}

What does a math inequality look like?

The equation-like form of the formula 5x 4 > 2x + 3 has an arrowhead in place of the equals sign. It is an illustration of inequity. This shows that the left half, 5x 4, is bigger than the right part, 2x + 3.

Given that:

-6x < 36

we multiply -1 on both the sides

6x > -36

divide 6 on both the side

x > -6

Hence the correct answer is this inequality {x | x > -6}.

Learn more about inequality

brainly.com/question/24372553

#SPJ4

5 0
1 year ago
Please help.................
evablogger [386]
It usually works well to do what the instructions tell you. Multiply each diameter by 3.14.

a) 3.14×6 cm = 18.84 cm

b) [can't read the picture]

d) 3.14×9 in = 28.26 in

e) 3.14×11 mm = 34.54 mm
7 0
3 years ago
What’s the correct answer for this question?
Ad libitum [116K]

Answer:

C:

Step-by-step explanation:

Both angles add up to 180°

<BCG + <BFG = 180°

2x+146+4x+238=180

6x+384 = 180°

6x = 180-384

6x = -204

Dividing both sides by 6

x = -34

8 0
3 years ago
PLEASE HELP!!!!!!!!!!!!!!!!!!!
Advocard [28]

Answer:

i believe the answer is a. There are no solutions to the system because the equations represent parallel lines.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find θ, 0° ≤ θ &lt; 360°, given the following information.
ludmilkaskok [199]

Answer:

210°

Step-by-step explanation:

Given

sinΘ = - \frac{1}{2}

Note taken the inverse sine of the positive value of the ratio, gives the related acute angle, that is

Θ = sin^{-1}(\frac{1}{2} ) = 30° ← related acute angle

Thus the required angle in the third quadrant is

Θ = 180° + 30° = 210°

3 0
3 years ago
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