Ask question

Ask question

All categories

3 years ago

13

Solve the system of equations to find the two masses

1 answer:

LekaFEV [45]3 years ago

5 0

Type both equations into an algebra calculator from the website maths papa really accurate and shows working!!

You might be interested in

Suppose Ken has 25 coins and nickels and dimes only and has a total of a $1.65 how many of each coin does he have?

nikklg [1K]

$x-\ number\ of\ nickels\\
y-\ number\ of\ dimes\\\\
x+y=25 \ \ \ | x=25-y\\
0.05x+0.1y=1.65\\\\
0.05(25-y)+0.1y=1.65\\\\
1.25-0.05y+0.1y=1.65\\\\
1.25+0.05y=1.65\ \ \ | subtract\ 1.25\\\\
0.05y=0.4\ \ \ \ \ | divide\ by\ 0.05\\\\
y=8\\\\
x=25-8=17\\\\
There\ are\ 17 \ nickels\ and\ 8\ dimes.
$

6 0

2 years ago

The equation y-1=-7(x-3) is written in point-slope form. What is the y-intercept of the line?

vredina [299]

Hello,

y - 1 = -7x + 21

So y = 1

x = 21/7

8 0

2 years ago

3x - 8 = 13 + -2(x - 8)

valentinak56 [21]

Answer:

37/5 or 7.4 or 7 2/5

Step-by-step explanation:

<em>I hope this helps! Have a great day!!</em>

<em>Skye~</em>

3 0

2 years ago

If the legs of a right triangle are 4 and 7, the length of the hypotenuse is

Lisa [10]

Answer:

Hipotanous is rootunder 65

7 0

3 years ago

Read 2 more answers

Estimate 76.216+66.36 by first rounding each number to the nearest whole number.

xeze [42]

Answer:

142

Step-by-step explanation:

Round the numbers to their nearest WHOLE NUMBER.

$76.216=76\\66.36=66$

Then ADD

$76+66=142$

6 0

2 years ago