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3 years ago

Solve and then answer the questions

Mathematics

1 answer:

denpristay [2]3 years ago

6 0

Answer:

71 and 19

Step-by-step explanation:

Numbers are x and y, equations below:

x + y = 90
x = 3y + 14

Substitute x in the first equation:

3y + 14 + y = 90

Solve for y:

4y + 14 = 90
4y = 76
y = 19

Find x:

x = 90 - 19 = 71

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Marshall and Peter went to lunch at a cafe. They ordered a spinach salad for $4.15, a tuna sandwich for $6.35, and 2 glasses of

garri49 [273]

Answer:

$1.05

Step-by-step explanation:

The amount of money they should pay is 4.15+6.35+2*1.1+1.25 = $13.95

The change is 15-13.95=$1.05

8 0

3 years ago

The expression 0.25q + 0.10d gives the value in dollars of q quarters and d dimes. what are the terms in the expression?

11111nata11111 [884]

The answer is d, Because terms are separated by signs, i.e multiplication/division.

6 0

3 years ago

Attendance at a museum more than tripled from Monday to Saturday. On Monday, 186 people went to the museum. How many people went

ira [324]

Answer:

The number of people who visited museum on Saturday is 558.

Step-by-step explanation:

Number of people went to museum on Monday = 186

Also, the number of people triples on Saturday.

So, Number of people visited on Saturday

= 3 x Number of people who visited museum on Monday

= 3 x 186 = 558

Hence, the number of people who visited on Saturday is 558.

7 0

3 years ago

If ORBIT is coded BEOVG, then how is PLANET coded? /

arlik [135]

Answer:

1. CYNARG

Step-by-step explanation:

This a example of Caesar's Cipher, in which each letter in the original word leads to a ciphered letter according to the following equation:

$C = (P + o) \text{mod} 26$

In which C is the index of the Ciphered letter in the alphabet, P is the index of the original letter and o is the offset.

Finding the offset:

O is coded B

O is the 15th letter in the alphabet, so $P = 15$ .

B is the 2nd letter in the alphabet, so $C = 2$

$C = (P + o) \text{mod} 26$

$2 = (15 + o) \text{mod} 26$

$|o = |2-15| \text{mod} 26$

$o = 13$

$C = (P + 13) \text{mod} 26$

PLANET:

P is the 16th letter in the alphabet.

$C = (16 + 13) \text{mod} 26 = 3$

So P is coded C.

L is the 12th letter in the alphabet:

$C = (12 + 13) \text{mod} 26 = 25$

L is coded Y(25th letter in the alphabet)

A is the 1st letter in the alphabet

$C = (1 + 13) \text{mod} 26 = 14$

A is coded N

N is the 14th letter in the alphabet

$C = (14 + 13) \text{mod} 26 = 1$

N is coded A

E is the 5th letter in the alphabet

$C = (5 + 13) \text{mod} 26 = 18$

E is coded R

So the correct answer is:

1. CYNARG

4 0

3 years ago

First person to respond will be marked brainly

vaieri [72.5K]

Answer:

1.) V=πr2h=π·6.52·16≈ 2123.71663, rounded= 2123.72

2.)V=πr2h=π·22·3≈37.69911, rounded= 37.80, or 37.8

3.) V=πr2h=π·12·3≈9.42478, rounded= 9.42

4.)70.69

5.)V=πr2h=π·3.82·3≈136.09379, rounded= 136.09

8 0

3 years ago

Solve and then answer the questions​

Solve and then answer the questions