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polet [3.4K]
2 years ago
15

Solve system of equation by elimination: 4x - y = 1 3x + y = -1

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
8 0
The answer would be a: (0, -1). Hope this helps.
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Coach Jamison wants to celebrate the final win of the school's baseball season with a trip to the local fast food place. The tea
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So we have 2 variables here: tacos and orders of nachos.

When we translate the paragraphs into equation: 28t + 27n = 114.80 \\ \\ 12t + 3n = 37.20

Now, in this situation we can make use the elimination method by converting 3n to -27n.

- 108t - 27n = - 334.8

Add both equations: 28t + 27n - 108t - 27n = 114.8 - 334.8 \\ \\ - 80t = - 220 \\ \\ t = 2.75

So we find that one taco costs $2.75.

We can plug this into any of the first two equations to find n: 12 \times 2.75 + 3n = 37.2 \\ \\ 33 + 3n = 37.2 \\ \\ 3n = 4.2 \\ \\ n = 1.4

So one order of nachos cost $1.40.
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3 years ago
in the next several games , the pitcher threw a total of 384 pitches and used a fastball 240 times. What decimal should juanita
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Divide the number of fast balls by the total number of pitches:

240 / 384 = 0.625

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3 years ago
Find the value of x.<br> m2 = x + 67
FrozenT [24]

Answer:

x=m2-67

Step-by-step explanation:

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3 years ago
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PLEASE ANSWER AND EXPLAIN | 98 POINTS
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<em>Answer:</em>

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<em>The value of a correlation coefficient ranges between -1 and 1.</em>

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<em>The greater the absolute value of the Pearson product-moment correlation coefficient, the stronger the linearrelationship.</em>

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<em>The strongest linear relationship is indicated by a correlation coefficient of -1 or 1.</em>

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<em>The weakest linear relationship is indicated by a correlation coefficient equal to 0.</em>

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3 years ago
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(05.01) Which statement best describes the area of the triangle shown below?​
alukav5142 [94]

Answer:

A

Step-by-step explanation:

Area of a triangle:

A=\frac{b*h}{2}

In our case:

b=4

h=2

Plug in what we know:

A=\frac{(4)(2)}{2} \\A=4units

Find the matching solution:

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