3 years ago

Alyssa saw 48 birds in a tree. How many dozen birds did Alyssa see?

Mathematics

1 answer:

Kamila [148]3 years ago

8 0

4 dozen, he’s right ^

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If a system of linear equations has no solution, what does this mean about the two lines?

romanna [79]

Answer:

The lines do not intersect, it is parallel therefore there is no solution.

Step-by-step explanation:

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2 years ago

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X^2-7x=18<br><br> solve for x <br> please show work

zloy xaker [14]

So the answer is, x1=-2, x2=9
x^2-7x=18
x^2-7x-18=0
x^2+2x-9x-18=0
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(x+2)*(x-9)=o
x+2=0
x-9=0
X=-2
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I hope u understand!

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2 years ago

Find the value of the expression 2ab/c when a = -1, b = -4, and c= 2

motikmotik

Answer:

Step-by-step explanation:

Given

$\frac{2ab}{c}$ , substitute the given values into the expression

= $\frac{2(-1)(-4)}{2}$

= $\frac{2(4)}{2}$

= $\frac{8}{2}$

= 4

4 0

2 years ago

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Jay went on a diet and lost 5 pounds each month. Find Jay's net weight change in 6 months.

Goryan [66]

Answer:

a 30 pound weight change in 1 month

Step-by-step explanation:

5 pounds

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1 month

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3 years ago

Winnona took five chapter tests. The table shows her scores. Test 1 2 3 4 5 Score 95 85 96 97 74 If Winnona retakes Test 5, what

mestny [16]

Answer:

The answer is A.

Step-by-step explanation:

Given that Winnona took 5 tests and retake Test 5. So the mean score for this question is Total number of scores divide by Total number of tests is equals to 87 :

Let Test 5's score be x,

Let mean score be 87,

$\frac{95 + 85 + 96 + 97 + x}{5} = 87$

Next you have to solve the value of x :

$373 + x = 87 \times 5 \\ 373 + x = 435 \\ 373 + x - 373 = 435 - 373 \\ x = 62 \: \: \: scores$

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2 years ago