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2 years ago

Consider the system of linear equations 2x + 3y = 8 and 3x+y=-2. Which statement is correct

Mathematics

2 answers:

SashulF [63]2 years ago

5 0

Answer:

The point (1.2) is not a solution to the system of equations because it satisfies neither equation

Step-by-step explanation:

if a given point is a solution of a system of equation that point must satisfy every equation at the same time

If we evaluate the point in one of the equations of the system only satisfy one of them

nordsb [41]2 years ago

5 0

Answer: A

Step-by-step explanation: I just took the test

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Which of the following expressions is equal to 1 divided by 16?

belka [17]

I wrote it somewhere else where I can’t copy and paste so hope this works!

8 0

2 years ago

After breaking your penny bank, you notice that you have $4.87 in quarters ($0.25), dimes ($0.10), nickels ($0.05), and pennies

ira [324]

Answer: Option 'c' is correct.

Step-by-step explanation:

Let the number of dimes be 'x'.

Let the number of nickels be ' $\dfrac{3}{2}x$ '.

Let the number of pennies be $\dfrac{3}{2}\times 2x=3x$

Let the number of quarters be '3x-34'.

As we know that

1 quarter = $0.25

1 dime = $0.10

1 nickel = $0.05

1 penny = $0.01

According to question, we get that

$0.10x+0.05\times \dfrac{3x}{2}+0.01\times 3x+0.25(3x-34)=4.87\\\\0.10x+0.075x+0.03x+0.75x-8.5=4.87\\\\\\0.955x=4.87+8.5\\\\0.955x=13.37\\\\x=\dfrac{13.37}{0.955}\\\\x=14$

So, the number of pennies is given by

$3x=3\times 14=42$

Hence, Option 'c' is correct.

3 0

2 years ago

? is in the picture plsss answer

balandron [24]

Answer:

You have a triangle and a Square!

Step-by-step explanation:

Blue = Square

Red = triangle

3 0

3 years ago

Can someone please help me

PtichkaEL [24]

Answer:

The size is 37.5 degrees

Step-by-step explanation:

The total angle in the triangle is 180

Since the other two angles are congruent. it means that they are equal

Let us call each of the angles x

Mathematically,

x + x + 105 = 180

2x = 180-105

2x = 75

x = 75/2

x = 37.5

7 0

3 years ago

9/10-1/3-1/5 find the fraction

Zanzabum

Find a common multiple in between the denominators.
10 and 3 and 5 -> the least common multiple is 30.

Change all the denominators to 30 by multiplying the top and bottom by the same number.

9/10=27/30
1/3=10/30
1/5=6/30

Subtract!
27/39-10/30-6/30=11/30

The answer is 11/30

Hope this helps!

3 0

3 years ago