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3 years ago

HELPPPPP ME PLEASE!!!!

Mathematics

2 answers:

Rufina [12.5K]3 years ago

6 0

Answer:

this is tough

Step-by-step explanation:

Rzqust [24]3 years ago

5 0

Answer:

100 degrees

Step-by-step explanation:

The three angles inside a triangle always add up to 180

so, 180-43-57 is 80

But that's the angle inside the triangle. notice that that angle (ACD) and BCA make a straight line. That means they add up to 180. Therefore, 180-80=100 degrees.

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One and a half gallons. (1.5 gallons)

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3 years ago

PLEASE HELP ME PLEASE

fiasKO [112]

Answer:

4/3

Step-by-step explanation:

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3 years ago

Two identical jars are filled with equal numbers of marbles. The marbles are colored red or white. The ratio of red to white mar

IrinaK [193]

Let $a=$ the number of white marbles in Jar 1
Let $b=$ the number of white marbles in Jar 2
Total number of white marbles is $a+b=90$

Jar 1 has $a$ white marbles and $7a$ red marbles so $8a$ marbles total
Jar 2 has $b$ white marbles and $9b$ red marbles so $10b$ marbles total
Since both jars have equal amounts of marbles, $8a=10b$

We have a system of equations:
$a+b=90$
$8a=10b$

The number of red marbles in Jar 2 is $9b$ so we solve for $b$

$8a=10b$
⇒ $a=\frac{5}{4}b$
⇒ $\frac{5}{4}b+b=90$
⇒ $\frac{9}{4}b=90$
⇒ $b=40$
Number of red marbles in Jar 2 is $9b=360$

So there are 360 red marbles in Jar 2.

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3 years ago

Larry sold twice as many magazines as Jan. Henry sold 8 more magazines than Jan did. Larry and Henry sold the same amount of mag

Pavlova-9 [17]

Answer:

16 magazines jan sold

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3 years ago

Read 2 more answers

Is 4x-6=1/2(-12+8x) one solution, no solution, or infinite? show work

Ira Lisetskai [31]

Infinite Solution is the answer