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3 years ago

Hello guys

Mathematics

2 answers:

lora16 [44]3 years ago

4 0

Answer:

A.7/2

alternate form: 3 1/2

B.36/7

alternate form: 5 1/7

i hope it help

Marianna [84]3 years ago

3 0

Answer:

a is 17 1/2 i dont know b sorry

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Question 9

timurjin [86]

Answer:

The required number is 70.

Step-by-step explanation:

let the no. be 10y + x where x is unit digit and y is ten's digit.

given , sum of the digit is 7

x + y = 7 ...(1)

also , reversing the no. we get 10x + y ,where x is ten's digit and y is unit digit.

given reversed digit decreases the number by 63 .

so, 10y + x - ( 10x + y ) = 63

9y -9x = 63

( dividing both side by 9 )

y - x = 7 ....(2)

adding 1 and 2 [ refer attachment ]

so the required original number is

10y + x = 10×7+0 = 70

8 0

2 years ago

What the function? y = 2.5x + 8

garik1379 [7]

Answer:

Step-by-step explanation:

This is a linear function with y-intercept (0, 8) and slope 2.5.

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3 years ago

Question attached WORTH A LOT OF POINTS IM GOING TO MARK BRAINLIEST MAKE SURE IT IS EASY TO UNDERSTAND WITH NO SYMBOLS Pls

11111nata11111 [884]

Answer:

60.4°

Step-by-step explanation:

DF is a line, which means ∠DEF = 180°. We also know that ∠DEF = ∠DEB + ∠BEG + ∠GEF. We already know three of these measures, so we can solve for the other:

∠DEF = ∠DEB + ∠BEG + ∠GEF

180 = 110.2 + ∠BEG + 25.6

∠BEG = 44.2°

We know that lines AC and DF are parallel, and since ∠ABE and ∠BEF are alternate interior angles, by definition, ∠ABE = ∠BEF.

∠BEF = ∠BEG + ∠GEF = 44.2 + 25.6 = 69.8°

Then, ∠ABE = ∠BEF = 69.8°.

Again, since AC is a line, ∠ABC = 180°. We also know that ∠ABC = ∠ABE + ∠EBG + ∠GBC. Just like before, we already know three of these angles, so we can solve for the other:

∠ABC = ∠ABE + ∠EBG + ∠GBC

180 = 69.8 + ∠EBG + 34.8

∠EBG = 75.4°

Finally, since EBG is a triangle, we know that its interior angles add up to 180:

∠BEG + ∠EBG + ∠BGE = 180

Plug in the values we know:

44.2 + 75.4 + x = 180

x = 60.4°

3 0

3 years ago

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If you triple the amount of ground ginger to make more pies, how much nutmeg should you use to keep the recipe proportional

klemol [59]

If you triple the ginger, to be able to keep proportion, you would need triple the nutmeg as well.

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4 years ago

A sweater was on sale at %40 off the regular price. Ella saved $20 by buying the sweater on sale. What was the regular price of

Artyom0805 [142]

so she saved $20 and that was 40% of the regular price, let's say the regular price is "x".

if 20 is 40%, what is "x" or namely the 100%?

$\bf \begin{array}{ccll} amount0&\%\\ \cline{1-2} 20&40\\ x&100 \end{array}\implies \cfrac{20}{x}=\cfrac{40}{100}\implies \cfrac{20}{x}=\cfrac{2}{5}\implies 100=2x \\\\\\ \cfrac{100}{2}=x\implies 50=x$

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3 years ago

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