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2 years ago

Can anyone help me??????

Mathematics

1 answer:

baherus [9]2 years ago

6 0

Answer:

100 degrees

Step-by-step explanation:

Alternate exterior angles are the same

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13. Describe the system by substitution: y=x-7 2x - y = 3

torisob [31]

Answer:

$x = y + 7 \\ \\ x = \frac{3 + y}{2} \: or \: y = 2x - 3$

Step-by-step explanation:

$1. \: 2x = 3 + y \\ 2. \: x = \frac{3 + y}{2} \: or \: y = 2x - 3 \\ \\ 1. \: y + 7 = x \\ 2. \: x = y + 7$

4 0

1 year ago

In the Cerner a magnitude 7.9 earthquake struck California. In another year a magnitude 5.9 quick struck Kansas How many times a

katen-ka-za [31]

Answer:

Step-by-step explanation:

7.9-5.9= 2.0 the answer would be 2

3 0

2 years ago

If an original conditional statement is represented by p → q, which represents the contrapositive?

sveta [45]

Answer:

the answer is b

Step-by-step explanation:

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3 years ago

A trader bought x mangoes at the rate of 4 mangoes for 10 naira five of the mangoes were bad so he sold the remaining at the rat

Ilya [14]

Answer:

20 mangoes.

Step-by-step explanation:

Given:

Total number of mangoes, a trader bought = $x$

A trader bought at the rate of 4 mangoes for 10 naira.

Five of the mangoes were bad.

He sold the remaining at the rate of 5 mangoes for 20 naira.

He made a gain of 10 naira

Question asked:

Total number of mangoes, a trader bought = $x$ = ?

Solution:

Unitary method

Cost price of 4 mangoes = 10 naira.

Cost price of 1 mango = $\frac{10}{4}$

Cost price of $x$ mango = $\frac{10}{4}\times x= \frac{5}{2} x$

As 5 of the mangoes were bad and he sold the remaining mangoes, then Total number of mangoes sold = $x-5$

Sale price of 5 mangoes = 20 naira

Sale price of 1 mango = $\frac{20}{5}$

Sale price $x-5$ of mango = $\frac{20}{5}\times(x-5)=4(x-5)=4x-20$

Now, as we know,

$Gain = Sale price - cost price$

$10 = 4x-20 -\frac{5}{2} x\\ 10=4x-\frac{5}{2} x-20\\10=\frac{8x-5x}{2} -20$

$10 =\frac{3x}{2} -20$

Adding both sides by 20

$30=\frac{3x}{2}$

Multiplying both sides by 2

$60 = 3x$

Dividing both sides by 3

$x=20$

Therefore, total number of mangoes, a trader bought is 20.

3 0

2 years ago

Find x.

azamat

1) D. 45

2)
A.96

1)
(3x+4)(99)=(3x+4)(99)=(3x)(99)+(4)(99)=297x+396

2)116+83=96.

3 0

2 years ago

Read 2 more answers