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Pie
3 years ago
15

H + 86.43 = 531.79 h = ___________

Mathematics
2 answers:
dedylja [7]3 years ago
6 0
H= 445.36
because you bring the 86.43 over to the 531.79. which would make 86.43 a negative number. so you subtract 531.79 by 86.43
irina1246 [14]3 years ago
5 0

Answer:

h=445.36

Step-by-step explanation:

Subtract both sides by 86.46

531.79 - 86.43 = 445.36

Check answer by plugging it back in

445.36 + 86.43 = 531.79

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I am doing a percent equation problem and I need help please here’s the question 20% of blank =10
Lina20 [59]

Answer:

50

Step-by-step explanation:

Let x = blank (for convenience)

20\%x=10

0.2x=10 (change 20\% into its decimal form)

x = 10\div 0.2 (divide 0.2 on both sides)

x=50

∴ Blank = 50

Hope this helps :)

4 0
3 years ago
Which statement are true about the following diagram as labeled
kow [346]

Answer: Triangle ADB is congruent to CBD

Step-by-step explanation:

S1: Try to measure the sides to look alike.

S2: Compare your answers to someone in your class!!!

5 0
3 years ago
1. if m&lt;b = 60 what is AB<br><br><br>2. if m&lt;b =45 what is the perimeter of the trapezoid.​
nika2105 [10]

Answer:....

Step-by-step explanation:

first we need to find the base of the triangle, so the total is 20, they also give us 12, so we subtract 20-12=8 now divide. 8/2=4. Now we use the 4 and the 60. We use SOH-CAH-TOA, they give us the base now we need to find AB which is the hypotenuse. So we take out the TOA, and the 4 is the adjacent so we take out the SOH, we have CAH now, so we use cos. Now equation time....

cos60=\frac{4}{x}   since x is the bottom we switch \frac{4}{cos60}, which equals 8. AB=8.

Now to find the perimeter. We still use the 4 to find the hypotenuse so we  can find the outside side. For this one they tell us to use 45, so now lets see what method we use. SOH-CAH-TOA. We need the hypotenuse and they give us the adjacent, so we use cos again. Now setting up the equation...

cos45=\frac{4}{x}    x is at the bottom again to we switch.

\frac{4}{cos45}   which equals to 5.657 or you can round it. Now we add everything.

20+12+5.657+5.657= 45.314 or you can round it to 45.

5 0
3 years ago
Is (4,-5) a possible solution to 5x + 2y = 8?
vitfil [10]
No because x=4 and y=-5 and when you plug it in you get 5(4)+2(-5)=8 20+-10=8 and 10= does not work so it is not a possible solution.
4 0
3 years ago
Read 2 more answers
What is the volume and surface area of this
Norma-Jean [14]

Answer:

V= 240 sq cm

A= 268 sq cm

Step-by-step explanation:

V= l * w * h

V= 10 * 8 * 3

V= 240 sq cm

A=2(wl+hl+hw)

A=2(8*10 + 3*10 + 3*8)

A= 268 sq cm

5 0
3 years ago
Read 2 more answers
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