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stiv31 [10]
3 years ago
5

Joyce paid $20.00 for an item at the store that was 75 percent off the original price. What was the

Mathematics
2 answers:
sesenic [268]3 years ago
4 0

Answer:

Step-by-step explanation:

just multiply 75% by 20.00

Travka [436]3 years ago
4 0
$20 • 75% = $15
$20 + $15 = $35
The original cost was $35
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A development economist is studying income growth in a rural area of a developing country. The last census of the population of
Anna [14]

Answer:

Reject H0 if x > cv

Step-by-step explanation:

The hypothesis :

H0 : μ ≤ 425

H1 : μ > 425

Standard deviation, s = √2500 = 50

Sample size, n = 100

xbar = 433.5

The test statistic, Z :

(xbar - μ) / s/√n

(433.5 - 425) / 50/10

Z = 8.5 / 5 = 1.7

The decision region ;

|Z| > Z0.01 ; Reject H0

From Z table ;critical value, Z0.01 = 2.33

1.7 < 2.33 ; We fail to reject then Null and conclude that thee is no significant evidence support the claim that population mean income has increased.

7 0
3 years ago
3/2x-4=16
kifflom [539]

Answer:

2. X = 13 1/3

Step-by-step explanation:

(3/2) times x - 4 = 16/ - 16

(3/2) times x - 16 - 4 = 0

3/2 times x - 20 = 0/ + 20

3/2 times x = 20 / : 3/2  

x = 20/3/2

x = 40/3  = 13 1/3

8 0
3 years ago
Help me pleas help me please
vodomira [7]
There are 13 time slots

8 0
3 years ago
Read 2 more answers
On the treadmill, Bethany walks at a rate of 3 steps every 2 seconds. At this rate, how many seconds will it take Bethany to wal
Darya [45]

Answer:

67

Step-by-step explanation:

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6 0
3 years ago
Un rectangulo de madera se uso para en marcar un espejo en forma de rombo.Si los lados del marco miden 80.5 cm y 36.4, y las dia
QveST [7]

Answer:

1465.1 cm²

Step-by-step explanation:

El espejo en forma de diamante tiene la forma de rombo

Tenga en cuenta que: las diagonales del rombo tienen las mismas medidas de esos lados

Por lo tanto, el área del espejo se calcula como:

1/2 × Diagonal 1 × Diagonal 2

Diagonal 1 = 80.5 cm

Diagonal 2 = 36.4 cm

= 1/2 × 80.5 cm × 36.4 cm

= 2930.2 cm² / 2

= 1465.1 cm²

Por tanto, el área del espejo es 1465.1 cm².

8 0
3 years ago
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