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solniwko [45]
3 years ago
14

huixian bought 8 books at $w each and 7 pens at $m each. She had $(3w+5m) left. Find the amount of money she had first

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer:

12m+11w ( i don't think this is right)

Step-by-step explanation:

$7m+5m=12m

3w+8w=11w

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Lines m and n are parallel.<br><br> What is angle 2?<br><br> A. 39<br> B. 57<br> C. 67<br> D. 74
max2010maxim [7]

Answer: The correct answer is option C: 67

Step-by-step explanation: So we have four different lines intersecting at one point or the other and these are lines m, n, s and t. Also lines m and n are parallel, so we shall start from there. If lines m and n are parallel, then angle 74 along line n is equal to angle 9X + 2 along line m {corresponding angles are equal}. Therefore

9x + 2 = 74

9x = 74 - 2

9x = 72

Divide both sides of the equation by 9

x = 8.

Also the angle bounded by the intersection of lines m and s equals 74 {opposite angles are equal} because it’s opposite angle 9x + 2 and it’s also alternate to angle 74.

Looking at angle 5x - 1 along line t, substitute for the value of x

= 5(8) - 1

= 40 - 1

= 39

Therefore if angle 5x - 1 is calculated as 39, observe carefully that lines m, t and s intersect to form a triangle. The angles in the triangle are 39, 74 and S (labeled as angle 2). To calculate angle S,

S + 39 + 74 = 180 {Sum of angles in a triangle equals 180}

S + 113 = 180

Subtract 113 from both sides of the equation

S = 67

Therefore angle 2 equals 67 degrees.

5 0
4 years ago
Help will give brainliest
dolphi86 [110]

Answer:

y = 4

Step-by-step explanation:

KM / 10 = KO / 16

(4y - 1) / 10 = 6y / 16

KO = 4y-1 + 2y+1 = 6y

cross-multiply:

60y = 64y - 16

-4y = -16

y = 4

3 0
3 years ago
How do I solve the equation? -34= v+42-5v
Alex17521 [72]
-34=v+42-5v
-76=-4v
V= 19
8 0
3 years ago
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OLEGan [10]
Answer=-7

From f(x) to g(x) the parabola moves down 7 units
4 0
4 years ago
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The price of a video game at Game Word has increased from $36 to $45 each. What was the percent change?
andriy [413]

Step-by-step explanation:

price difference= $45-$36

=$9

now,

x% of $45=$9

or, x/100 ×45 =9

or, x/20 ×9=9

or, x/20=1

therefore, x= 20%

3 0
3 years ago
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